# coding=utf-8
# --------------------------------------------------------------------------
# Copyright (c) Microsoft Corporation. All rights reserved.
# Licensed under the MIT License. See License.txt in the project root for license information.
# Code generated by Microsoft (R) AutoRest Code Generator.
# Changes may cause incorrect behavior and will be lost if the code is regenerated.
# --------------------------------------------------------------------------
from typing import TYPE_CHECKING
import warnings

from azure.core.exceptions import ClientAuthenticationError, HttpResponseError, ResourceExistsError, ResourceNotFoundError, map_error
from azure.core.paging import ItemPaged
from azure.core.pipeline import PipelineResponse
from azure.core.pipeline.transport import HttpRequest, HttpResponse
from azure.core.polling import LROPoller, NoPolling, PollingMethod
from azure.mgmt.core.exceptions import ARMErrorFormat
from azure.mgmt.core.polling.arm_polling import ARMPolling

from .. import models as _models

if TYPE_CHECKING:
    # pylint: disable=unused-import,ungrouped-imports
    from typing import Any, Callable, Dict, Generic, Iterable, Optional, TypeVar, Union

    T = TypeVar('T')
    ClsType = Optional[Callable[[PipelineResponse[HttpRequest, HttpResponse], T, Dict[str, Any]], Any]]

class VirtualMachineScaleSetVMsOperations(object):
    """VirtualMachineScaleSetVMsOperations operations.

    You should not instantiate this class directly. Instead, you should create a Client instance that
    instantiates it for you and attaches it as an attribute.

    :ivar models: Alias to model classes used in this operation group.
    :type models: ~azure.mgmt.compute.v2017_03_30.models
    :param client: Client for service requests.
    :param config: Configuration of service client.
    :param serializer: An object model serializer.
    :param deserializer: An object model deserializer.
    """

    models = _models

    def __init__(self, client, config, serializer, deserializer):
        self._client = client
        self._serialize = serializer
        self._deserialize = deserializer
        self._config = config

    def _reimage_initial(
        self,
        resource_group_name,  # type: str
        vm_scale_set_name,  # type: str
        instance_id,  # type: str
        **kwargs  # type: Any
    ):
        # type: (...) -> Optional["_models.OperationStatusResponse"]
        cls = kwargs.pop('cls', None)  # type: ClsType[Optional["_models.OperationStatusResponse"]]
        error_map = {
            401: ClientAuthenticationError, 404: ResourceNotFoundError, 409: ResourceExistsError
        }
        error_map.update(kwargs.pop('error_map', {}))
        api_version = "2017-03-30"
        accept = "application/json"

        # Construct URL
        url = self._reimage_initial.metadata['url']  # type: ignore
        path_format_arguments = {
            'resourceGroupName': self._serialize.url("resource_group_name", resource_group_name, 'str'),
            'vmScaleSetName': self._serialize.url("vm_scale_set_name", vm_scale_set_name, 'str'),
            'instanceId': self._serialize.url("instance_id", instance_id, 'str'),
            'subscriptionId': self._serialize.url("self._config.subscription_id", self._config.subscription_id, 'str'),
        }
        url = self._client.format_url(url, **path_format_arguments)

        # Construct parameters
        query_parameters = {}  # type: Dict[str, Any]
        query_parameters['api-version'] = self._serialize.query("api_version", api_version, 'str')

        # Construct headers
        header_parameters = {}  # type: Dict[str, Any]
        header_parameters['Accept'] = self._serialize.header("accept", accept, 'str')

        request = self._client.post(url, query_parameters, header_parameters)
        pipeline_response = self._client._pipeline.run(request, stream=False, **kwargs)
        response = pipeline_response.http_response

        if response.status_code not in [200, 202]:
            map_error(status_code=response.status_code, response=response, error_map=error_map)
            raise HttpResponseError(response=response, error_format=ARMErrorFormat)

        deserialized = None
        if response.status_code == 200:
            deserialized = self._deserialize('OperationStatusResponse', pipeline_response)

        if cls:
            return cls(pipeline_response, deserialized, {})

        return deserialized
    _reimage_initial.metadata = {'url': '/subscriptions/{subscriptionId}/resourceGroups/{resourceGroupName}/providers/Microsoft.Compute/virtualMachineScaleSets/{vmScaleSetName}/virtualmachines/{instanceId}/reimage'}  # type: ignore

    def begin_reimage(
        self,
        resource_group_name,  # type: str
        vm_scale_set_name,  # type: str
        instance_id,  # type: str
        **kwargs  # type: Any
    ):
        # type: (...) -> LROPoller["_models.OperationStatusResponse"]
        """Reimages (upgrade the operating system) a specific virtual machine in a VM scale set.

        :param resource_group_name: The name of the resource group.
        :type resource_group_name: str
        :param vm_scale_set_name: The name of the VM scale set.
        :type vm_scale_set_name: str
        :param instance_id: The instance ID of the virtual machine.
        :type instance_id: str
        :keyword callable cls: A custom type or function that will be passed the direct response
        :keyword str continuation_token: A continuation token to restart a poller from a saved state.
        :keyword polling: True for ARMPolling, False for no polling, or a
         polling object for personal polling strategy
        :paramtype polling: bool or ~azure.core.polling.PollingMethod
        :keyword int polling_interval: Default waiting time between two polls for LRO operations if no Retry-After header is present.
        :return: An instance of LROPoller that returns either OperationStatusResponse or the result of cls(response)
        :rtype: ~azure.core.polling.LROPoller[~azure.mgmt.compute.v2017_03_30.models.OperationStatusResponse]
        :raises ~azure.core.exceptions.HttpResponseError:
        """
        polling = kwargs.pop('polling', True)  # type: Union[bool, PollingMethod]
        cls = kwargs.pop('cls', None)  # type: ClsType["_models.OperationStatusResponse"]
        lro_delay = kwargs.pop(
            'polling_interval',
            self._config.polling_interval
        )
        cont_token = kwargs.pop('continuation_token', None)  # type: Optional[str]
        if cont_token is None:
            raw_result = self._reimage_initial(
                resource_group_name=resource_group_name,
                vm_scale_set_name=vm_scale_set_name,
                instance_id=instance_id,
                cls=lambda x,y,z: x,
                **kwargs
            )

        kwargs.pop('error_map', None)
        kwargs.pop('content_type', None)

        def get_long_running_output(pipeline_response):
            deserialized = self._deserialize('OperationStatusResponse', pipeline_response)

            if cls:
                return cls(pipeline_response, deserialized, {})
            return deserialized

        path_format_arguments = {
            'resourceGroupName': self._serialize.url("resource_group_name", resource_group_name, 'str'),
            'vmScaleSetName': self._serialize.url("vm_scale_set_name", vm_scale_set_name, 'str'),
            'instanceId': self._serialize.url("instance_id", instance_id, 'str'),
            'subscriptionId': self._serialize.url("self._config.subscription_id", self._config.subscription_id, 'str'),
        }

        if polling is True: polling_method = ARMPolling(lro_delay, lro_options={'final-state-via': 'azure-async-operation'}, path_format_arguments=path_format_arguments,  **kwargs)
        elif polling is False: polling_method = NoPolling()
        else: polling_method = polling
        if cont_token:
            return LROPoller.from_continuation_token(
                polling_method=polling_method,
                continuation_token=cont_token,
                client=self._client,
                deserialization_callback=get_long_running_output
            )
        else:
            return LROPoller(self._client, raw_result, get_long_running_output, polling_method)
    begin_reimage.metadata = {'url': '/subscriptions/{subscriptionId}/resourceGroups/{resourceGroupName}/providers/Microsoft.Compute/virtualMachineScaleSets/{vmScaleSetName}/virtualmachines/{instanceId}/reimage'}  # type: ignore

    def _reimage_all_initial(
        self,
        resource_group_name,  # type: str
        vm_scale_set_name,  # type: str
        instance_id,  # type: str
        **kwargs  # type: Any
    ):
        # type: (...) -> Optional["_models.OperationStatusResponse"]
        cls = kwargs.pop('cls', None)  # type: ClsType[Optional["_models.OperationStatusResponse"]]
        error_map = {
            401: ClientAuthenticationError, 404: ResourceNotFoundError, 409: ResourceExistsError
        }
        error_map.update(kwargs.pop('error_map', {}))
        api_version = "2017-03-30"
        accept = "application/json"

        # Construct URL
        url = self._reimage_all_initial.metadata['url']  # type: ignore
        path_format_arguments = {
            'resourceGroupName': self._serialize.url("resource_group_name", resource_group_name, 'str'),
            'vmScaleSetName': self._serialize.url("vm_scale_set_name", vm_scale_set_name, 'str'),
            'instanceId': self._serialize.url("instance_id", instance_id, 'str'),
            'subscriptionId': self._serialize.url("self._config.subscription_id", self._config.subscription_id, 'str'),
        }
        url = self._client.format_url(url, **path_format_arguments)

        # Construct parameters
        query_parameters = {}  # type: Dict[str, Any]
        query_parameters['api-version'] = self._serialize.query("api_version", api_version, 'str')

        # Construct headers
        header_parameters = {}  # type: Dict[str, Any]
        header_parameters['Accept'] = self._serialize.header("accept", accept, 'str')

        request = self._client.post(url, query_parameters, header_parameters)
        pipeline_response = self._client._pipeline.run(request, stream=False, **kwargs)
        response = pipeline_response.http_response

        if response.status_code not in [200, 202]:
            map_error(status_code=response.status_code, response=response, error_map=error_map)
            raise HttpResponseError(response=response, error_format=ARMErrorFormat)

        deserialized = None
        if response.status_code == 200:
            deserialized = self._deserialize('OperationStatusResponse', pipeline_response)

        if cls:
            return cls(pipeline_response, deserialized, {})

        return deserialized
    _reimage_all_initial.metadata = {'url': '/subscriptions/{subscriptionId}/resourceGroups/{resourceGroupName}/providers/Microsoft.Compute/virtualMachineScaleSets/{vmScaleSetName}/virtualmachines/{instanceId}/reimageall'}  # type: ignore

    def begin_reimage_all(
        self,
        resource_group_name,  # type: str
        vm_scale_set_name,  # type: str
        instance_id,  # type: str
        **kwargs  # type: Any
    ):
        # type: (...) -> LROPoller["_models.OperationStatusResponse"]
        """Allows you to re-image all the disks ( including data disks ) in the a VM scale set instance.
        This operation is only supported for managed disks.

        :param resource_group_name: The name of the resource group.
        :type resource_group_name: str
        :param vm_scale_set_name: The name of the VM scale set.
        :type vm_scale_set_name: str
        :param instance_id: The instance ID of the virtual machine.
        :type instance_id: str
        :keyword callable cls: A custom type or function that will be passed the direct response
        :keyword str continuation_token: A continuation token to restart a poller from a saved state.
        :keyword polling: True for ARMPolling, False for no polling, or a
         polling object for personal polling strategy
        :paramtype polling: bool or ~azure.core.polling.PollingMethod
        :keyword int polling_interval: Default waiting time between two polls for LRO operations if no Retry-After header is present.
        :return: An instance of LROPoller that returns either OperationStatusResponse or the result of cls(response)
        :rtype: ~azure.core.polling.LROPoller[~azure.mgmt.compute.v2017_03_30.models.OperationStatusResponse]
        :raises ~azure.core.exceptions.HttpResponseError:
        """
        polling = kwargs.pop('polling', True)  # type: Union[bool, PollingMethod]
        cls = kwargs.pop('cls', None)  # type: ClsType["_models.OperationStatusResponse"]
        lro_delay = kwargs.pop(
            'polling_interval',
            self._config.polling_interval
        )
        cont_token = kwargs.pop('continuation_token', None)  # type: Optional[str]
        if cont_token is None:
            raw_result = self._reimage_all_initial(
                resource_group_name=resource_group_name,
                vm_scale_set_name=vm_scale_set_name,
                instance_id=instance_id,
                cls=lambda x,y,z: x,
                **kwargs
            )

        kwargs.pop('error_map', None)
        kwargs.pop('content_type', None)

        def get_long_running_output(pipeline_response):
            deserialized = self._deserialize('OperationStatusResponse', pipeline_response)

            if cls:
                return cls(pipeline_response, deserialized, {})
            return deserialized

        path_format_arguments = {
            'resourceGroupName': self._serialize.url("resource_group_name", resource_group_name, 'str'),
            'vmScaleSetName': self._serialize.url("vm_scale_set_name", vm_scale_set_name, 'str'),
            'instanceId': self._serialize.url("instance_id", instance_id, 'str'),
            'subscriptionId': self._serialize.url("self._config.subscription_id", self._config.subscription_id, 'str'),
        }

        if polling is True: polling_method = ARMPolling(lro_delay, lro_options={'final-state-via': 'azure-async-operation'}, path_format_arguments=path_format_arguments,  **kwargs)
        elif polling is False: polling_method = NoPolling()
        else: polling_method = polling
        if cont_token:
            return LROPoller.from_continuation_token(
                polling_method=polling_method,
                continuation_token=cont_token,
                client=self._client,
                deserialization_callback=get_long_running_output
            )
        else:
            return LROPoller(self._client, raw_result, get_long_running_output, polling_method)
    begin_reimage_all.metadata = {'url': '/subscriptions/{subscriptionId}/resourceGroups/{resourceGroupName}/providers/Microsoft.Compute/virtualMachineScaleSets/{vmScaleSetName}/virtualmachines/{instanceId}/reimageall'}  # type: ignore

    def _deallocate_initial(
        self,
        resource_group_name,  # type: str
        vm_scale_set_name,  # type: str
        instance_id,  # type: str
        **kwargs  # type: Any
    ):
        # type: (...) -> Optional["_models.OperationStatusResponse"]
        cls = kwargs.pop('cls', None)  # type: ClsType[Optional["_models.OperationStatusResponse"]]
        error_map = {
            401: ClientAuthenticationError, 404: ResourceNotFoundError, 409: ResourceExistsError
        }
        error_map.update(kwargs.pop('error_map', {}))
        api_version = "2017-03-30"
        accept = "application/json"

        # Construct URL
        url = self._deallocate_initial.metadata['url']  # type: ignore
        path_format_arguments = {
            'resourceGroupName': self._serialize.url("resource_group_name", resource_group_name, 'str'),
            'vmScaleSetName': self._serialize.url("vm_scale_set_name", vm_scale_set_name, 'str'),
            'instanceId': self._serialize.url("instance_id", instance_id, 'str'),
            'subscriptionId': self._serialize.url("self._config.subscription_id", self._config.subscription_id, 'str'),
        }
        url = self._client.format_url(url, **path_format_arguments)

        # Construct parameters
        query_parameters = {}  # type: Dict[str, Any]
        query_parameters['api-version'] = self._serialize.query("api_version", api_version, 'str')

        # Construct headers
        header_parameters = {}  # type: Dict[str, Any]
        header_parameters['Accept'] = self._serialize.header("accept", accept, 'str')

        request = self._client.post(url, query_parameters, header_parameters)
        pipeline_response = self._client._pipeline.run(request, stream=False, **kwargs)
        response = pipeline_response.http_response

        if response.status_code not in [200, 202]:
            map_error(status_code=response.status_code, response=response, error_map=error_map)
            raise HttpResponseError(response=response, error_format=ARMErrorFormat)

        deserialized = None
        if response.status_code == 200:
            deserialized = self._deserialize('OperationStatusResponse', pipeline_response)

        if cls:
            return cls(pipeline_response, deserialized, {})

        return deserialized
    _deallocate_initial.metadata = {'url': '/subscriptions/{subscriptionId}/resourceGroups/{resourceGroupName}/providers/Microsoft.Compute/virtualMachineScaleSets/{vmScaleSetName}/virtualmachines/{instanceId}/deallocate'}  # type: ignore

    def begin_deallocate(
        self,
        resource_group_name,  # type: str
        vm_scale_set_name,  # type: str
        instance_id,  # type: str
        **kwargs  # type: Any
    ):
        # type: (...) -> LROPoller["_models.OperationStatusResponse"]
        """Deallocates a specific virtual machine in a VM scale set. Shuts down the virtual machine and
        releases the compute resources it uses. You are not billed for the compute resources of this
        virtual machine once it is deallocated.

        :param resource_group_name: The name of the resource group.
        :type resource_group_name: str
        :param vm_scale_set_name: The name of the VM scale set.
        :type vm_scale_set_name: str
        :param instance_id: The instance ID of the virtual machine.
        :type instance_id: str
        :keyword callable cls: A custom type or function that will be passed the direct response
        :keyword str continuation_token: A continuation token to restart a poller from a saved state.
        :keyword polling: True for ARMPolling, False for no polling, or a
         polling object for personal polling strategy
        :paramtype polling: bool or ~azure.core.polling.PollingMethod
        :keyword int polling_interval: Default waiting time between two polls for LRO operations if no Retry-After header is present.
        :return: An instance of LROPoller that returns either OperationStatusResponse or the result of cls(response)
        :rtype: ~azure.core.polling.LROPoller[~azure.mgmt.compute.v2017_03_30.models.OperationStatusResponse]
        :raises ~azure.core.exceptions.HttpResponseError:
        """
        polling = kwargs.pop('polling', True)  # type: Union[bool, PollingMethod]
        cls = kwargs.pop('cls', None)  # type: ClsType["_models.OperationStatusResponse"]
        lro_delay = kwargs.pop(
            'polling_interval',
            self._config.polling_interval
        )
        cont_token = kwargs.pop('continuation_token', None)  # type: Optional[str]
        if cont_token is None:
            raw_result = self._deallocate_initial(
                resource_group_name=resource_group_name,
                vm_scale_set_name=vm_scale_set_name,
                instance_id=instance_id,
                cls=lambda x,y,z: x,
                **kwargs
            )

        kwargs.pop('error_map', None)
        kwargs.pop('content_type', None)

        def get_long_running_output(pipeline_response):
            deserialized = self._deserialize('OperationStatusResponse', pipeline_response)

            if cls:
                return cls(pipeline_response, deserialized, {})
            return deserialized

        path_format_arguments = {
            'resourceGroupName': self._serialize.url("resource_group_name", resource_group_name, 'str'),
            'vmScaleSetName': self._serialize.url("vm_scale_set_name", vm_scale_set_name, 'str'),
            'instanceId': self._serialize.url("instance_id", instance_id, 'str'),
            'subscriptionId': self._serialize.url("self._config.subscription_id", self._config.subscription_id, 'str'),
        }

        if polling is True: polling_method = ARMPolling(lro_delay, lro_options={'final-state-via': 'azure-async-operation'}, path_format_arguments=path_format_arguments,  **kwargs)
        elif polling is False: polling_method = NoPolling()
        else: polling_method = polling
        if cont_token:
            return LROPoller.from_continuation_token(
                polling_method=polling_method,
                continuation_token=cont_token,
                client=self._client,
                deserialization_callback=get_long_running_output
            )
        else:
            return LROPoller(self._client, raw_result, get_long_running_output, polling_method)
    begin_deallocate.metadata = {'url': '/subscriptions/{subscriptionId}/resourceGroups/{resourceGroupName}/providers/Microsoft.Compute/virtualMachineScaleSets/{vmScaleSetName}/virtualmachines/{instanceId}/deallocate'}  # type: ignore

    def _delete_initial(
        self,
        resource_group_name,  # type: str
        vm_scale_set_name,  # type: str
        instance_id,  # type: str
        **kwargs  # type: Any
    ):
        # type: (...) -> Optional["_models.OperationStatusResponse"]
        cls = kwargs.pop('cls', None)  # type: ClsType[Optional["_models.OperationStatusResponse"]]
        error_map = {
            401: ClientAuthenticationError, 404: ResourceNotFoundError, 409: ResourceExistsError
        }
        error_map.update(kwargs.pop('error_map', {}))
        api_version = "2017-03-30"
        accept = "application/json"

        # Construct URL
        url = self._delete_initial.metadata['url']  # type: ignore
        path_format_arguments = {
            'resourceGroupName': self._serialize.url("resource_group_name", resource_group_name, 'str'),
            'vmScaleSetName': self._serialize.url("vm_scale_set_name", vm_scale_set_name, 'str'),
            'instanceId': self._serialize.url("instance_id", instance_id, 'str'),
            'subscriptionId': self._serialize.url("self._config.subscription_id", self._config.subscription_id, 'str'),
        }
        url = self._client.format_url(url, **path_format_arguments)

        # Construct parameters
        query_parameters = {}  # type: Dict[str, Any]
        query_parameters['api-version'] = self._serialize.query("api_version", api_version, 'str')

        # Construct headers
        header_parameters = {}  # type: Dict[str, Any]
        header_parameters['Accept'] = self._serialize.header("accept", accept, 'str')

        request = self._client.delete(url, query_parameters, header_parameters)
        pipeline_response = self._client._pipeline.run(request, stream=False, **kwargs)
        response = pipeline_response.http_response

        if response.status_code not in [200, 202, 204]:
            map_error(status_code=response.status_code, response=response, error_map=error_map)
            raise HttpResponseError(response=response, error_format=ARMErrorFormat)

        deserialized = None
        if response.status_code == 200:
            deserialized = self._deserialize('OperationStatusResponse', pipeline_response)

        if cls:
            return cls(pipeline_response, deserialized, {})

        return deserialized
    _delete_initial.metadata = {'url': '/subscriptions/{subscriptionId}/resourceGroups/{resourceGroupName}/providers/Microsoft.Compute/virtualMachineScaleSets/{vmScaleSetName}/virtualmachines/{instanceId}'}  # type: ignore

    def begin_delete(
        self,
        resource_group_name,  # type: str
        vm_scale_set_name,  # type: str
        instance_id,  # type: str
        **kwargs  # type: Any
    ):
        # type: (...) -> LROPoller["_models.OperationStatusResponse"]
        """Deletes a virtual machine from a VM scale set.

        :param resource_group_name: The name of the resource group.
        :type resource_group_name: str
        :param vm_scale_set_name: The name of the VM scale set.
        :type vm_scale_set_name: str
        :param instance_id: The instance ID of the virtual machine.
        :type instance_id: str
        :keyword callable cls: A custom type or function that will be passed the direct response
        :keyword str continuation_token: A continuation token to restart a poller from a saved state.
        :keyword polling: True for ARMPolling, False for no polling, or a
         polling object for personal polling strategy
        :paramtype polling: bool or ~azure.core.polling.PollingMethod
        :keyword int polling_interval: Default waiting time between two polls for LRO operations if no Retry-After header is present.
        :return: An instance of LROPoller that returns either OperationStatusResponse or the result of cls(response)
        :rtype: ~azure.core.polling.LROPoller[~azure.mgmt.compute.v2017_03_30.models.OperationStatusResponse]
        :raises ~azure.core.exceptions.HttpResponseError:
        """
        polling = kwargs.pop('polling', True)  # type: Union[bool, PollingMethod]
        cls = kwargs.pop('cls', None)  # type: ClsType["_models.OperationStatusResponse"]
        lro_delay = kwargs.pop(
            'polling_interval',
            self._config.polling_interval
        )
        cont_token = kwargs.pop('continuation_token', None)  # type: Optional[str]
        if cont_token is None:
            raw_result = self._delete_initial(
                resource_group_name=resource_group_name,
                vm_scale_set_name=vm_scale_set_name,
                instance_id=instance_id,
                cls=lambda x,y,z: x,
                **kwargs
            )

        kwargs.pop('error_map', None)
        kwargs.pop('content_type', None)

        def get_long_running_output(pipeline_response):
            deserialized = self._deserialize('OperationStatusResponse', pipeline_response)

            if cls:
                return cls(pipeline_response, deserialized, {})
            return deserialized

        path_format_arguments = {
            'resourceGroupName': self._serialize.url("resource_group_name", resource_group_name, 'str'),
            'vmScaleSetName': self._serialize.url("vm_scale_set_name", vm_scale_set_name, 'str'),
            'instanceId': self._serialize.url("instance_id", instance_id, 'str'),
            'subscriptionId': self._serialize.url("self._config.subscription_id", self._config.subscription_id, 'str'),
        }

        if polling is True: polling_method = ARMPolling(lro_delay, path_format_arguments=path_format_arguments,  **kwargs)
        elif polling is False: polling_method = NoPolling()
        else: polling_method = polling
        if cont_token:
            return LROPoller.from_continuation_token(
                polling_method=polling_method,
                continuation_token=cont_token,
                client=self._client,
                deserialization_callback=get_long_running_output
            )
        else:
            return LROPoller(self._client, raw_result, get_long_running_output, polling_method)
    begin_delete.metadata = {'url': '/subscriptions/{subscriptionId}/resourceGroups/{resourceGroupName}/providers/Microsoft.Compute/virtualMachineScaleSets/{vmScaleSetName}/virtualmachines/{instanceId}'}  # type: ignore

    def get(
        self,
        resource_group_name,  # type: str
        vm_scale_set_name,  # type: str
        instance_id,  # type: str
        **kwargs  # type: Any
    ):
        # type: (...) -> "_models.VirtualMachineScaleSetVM"
        """Gets a virtual machine from a VM scale set.

        :param resource_group_name: The name of the resource group.
        :type resource_group_name: str
        :param vm_scale_set_name: The name of the VM scale set.
        :type vm_scale_set_name: str
        :param instance_id: The instance ID of the virtual machine.
        :type instance_id: str
        :keyword callable cls: A custom type or function that will be passed the direct response
        :return: VirtualMachineScaleSetVM, or the result of cls(response)
        :rtype: ~azure.mgmt.compute.v2017_03_30.models.VirtualMachineScaleSetVM
        :raises: ~azure.core.exceptions.HttpResponseError
        """
        cls = kwargs.pop('cls', None)  # type: ClsType["_models.VirtualMachineScaleSetVM"]
        error_map = {
            401: ClientAuthenticationError, 404: ResourceNotFoundError, 409: ResourceExistsError
        }
        error_map.update(kwargs.pop('error_map', {}))
        api_version = "2017-03-30"
        accept = "application/json"

        # Construct URL
        url = self.get.metadata['url']  # type: ignore
        path_format_arguments = {
            'resourceGroupName': self._serialize.url("resource_group_name", resource_group_name, 'str'),
            'vmScaleSetName': self._serialize.url("vm_scale_set_name", vm_scale_set_name, 'str'),
            'instanceId': self._serialize.url("instance_id", instance_id, 'str'),
            'subscriptionId': self._serialize.url("self._config.subscription_id", self._config.subscription_id, 'str'),
        }
        url = self._client.format_url(url, **path_format_arguments)

        # Construct parameters
        query_parameters = {}  # type: Dict[str, Any]
        query_parameters['api-version'] = self._serialize.query("api_version", api_version, 'str')

        # Construct headers
        header_parameters = {}  # type: Dict[str, Any]
        header_parameters['Accept'] = self._serialize.header("accept", accept, 'str')

        request = self._client.get(url, query_parameters, header_parameters)
        pipeline_response = self._client._pipeline.run(request, stream=False, **kwargs)
        response = pipeline_response.http_response

        if response.status_code not in [200]:
            map_error(status_code=response.status_code, response=response, error_map=error_map)
            raise HttpResponseError(response=response, error_format=ARMErrorFormat)

        deserialized = self._deserialize('VirtualMachineScaleSetVM', pipeline_response)

        if cls:
            return cls(pipeline_response, deserialized, {})

        return deserialized
    get.metadata = {'url': '/subscriptions/{subscriptionId}/resourceGroups/{resourceGroupName}/providers/Microsoft.Compute/virtualMachineScaleSets/{vmScaleSetName}/virtualmachines/{instanceId}'}  # type: ignore

    def get_instance_view(
        self,
        resource_group_name,  # type: str
        vm_scale_set_name,  # type: str
        instance_id,  # type: str
        **kwargs  # type: Any
    ):
        # type: (...) -> "_models.VirtualMachineScaleSetVMInstanceView"
        """Gets the status of a virtual machine from a VM scale set.

        :param resource_group_name: The name of the resource group.
        :type resource_group_name: str
        :param vm_scale_set_name: The name of the VM scale set.
        :type vm_scale_set_name: str
        :param instance_id: The instance ID of the virtual machine.
        :type instance_id: str
        :keyword callable cls: A custom type or function that will be passed the direct response
        :return: VirtualMachineScaleSetVMInstanceView, or the result of cls(response)
        :rtype: ~azure.mgmt.compute.v2017_03_30.models.VirtualMachineScaleSetVMInstanceView
        :raises: ~azure.core.exceptions.HttpResponseError
        """
        cls = kwargs.pop('cls', None)  # type: ClsType["_models.VirtualMachineScaleSetVMInstanceView"]
        error_map = {
            401: ClientAuthenticationError, 404: ResourceNotFoundError, 409: ResourceExistsError
        }
        error_map.update(kwargs.pop('error_map', {}))
        api_version = "2017-03-30"
        accept = "application/json"

        # Construct URL
        url = self.get_instance_view.metadata['url']  # type: ignore
        path_format_arguments = {
            'resourceGroupName': self._serialize.url("resource_group_name", resource_group_name, 'str'),
            'vmScaleSetName': self._serialize.url("vm_scale_set_name", vm_scale_set_name, 'str'),
            'instanceId': self._serialize.url("instance_id", instance_id, 'str'),
            'subscriptionId': self._serialize.url("self._config.subscription_id", self._config.subscription_id, 'str'),
        }
        url = self._client.format_url(url, **path_format_arguments)

        # Construct parameters
        query_parameters = {}  # type: Dict[str, Any]
        query_parameters['api-version'] = self._serialize.query("api_version", api_version, 'str')

        # Construct headers
        header_parameters = {}  # type: Dict[str, Any]
        header_parameters['Accept'] = self._serialize.header("accept", accept, 'str')

        request = self._client.get(url, query_parameters, header_parameters)
        pipeline_response = self._client._pipeline.run(request, stream=False, **kwargs)
        response = pipeline_response.http_response

        if response.status_code not in [200]:
            map_error(status_code=response.status_code, response=response, error_map=error_map)
            raise HttpResponseError(response=response, error_format=ARMErrorFormat)

        deserialized = self._deserialize('VirtualMachineScaleSetVMInstanceView', pipeline_response)

        if cls:
            return cls(pipeline_response, deserialized, {})

        return deserialized
    get_instance_view.metadata = {'url': '/subscriptions/{subscriptionId}/resourceGroups/{resourceGroupName}/providers/Microsoft.Compute/virtualMachineScaleSets/{vmScaleSetName}/virtualmachines/{instanceId}/instanceView'}  # type: ignore

    def list(
        self,
        resource_group_name,  # type: str
        virtual_machine_scale_set_name,  # type: str
        filter=None,  # type: Optional[str]
        select=None,  # type: Optional[str]
        expand=None,  # type: Optional[str]
        **kwargs  # type: Any
    ):
        # type: (...) -> Iterable["_models.VirtualMachineScaleSetVMListResult"]
        """Gets a list of all virtual machines in a VM scale sets.

        :param resource_group_name: The name of the resource group.
        :type resource_group_name: str
        :param virtual_machine_scale_set_name: The name of the VM scale set.
        :type virtual_machine_scale_set_name: str
        :param filter: The filter to apply to the operation. Allowed values are
         'startswith(instanceView/statuses/code, 'PowerState') eq true', 'properties/latestModelApplied
         eq true', 'properties/latestModelApplied eq false'.
        :type filter: str
        :param select: The list parameters. Allowed values are 'instanceView', 'instanceView/statuses'.
        :type select: str
        :param expand: The expand expression to apply to the operation. Allowed values are
         'instanceView'.
        :type expand: str
        :keyword callable cls: A custom type or function that will be passed the direct response
        :return: An iterator like instance of either VirtualMachineScaleSetVMListResult or the result of cls(response)
        :rtype: ~azure.core.paging.ItemPaged[~azure.mgmt.compute.v2017_03_30.models.VirtualMachineScaleSetVMListResult]
        :raises: ~azure.core.exceptions.HttpResponseError
        """
        cls = kwargs.pop('cls', None)  # type: ClsType["_models.VirtualMachineScaleSetVMListResult"]
        error_map = {
            401: ClientAuthenticationError, 404: ResourceNotFoundError, 409: ResourceExistsError
        }
        error_map.update(kwargs.pop('error_map', {}))
        api_version = "2017-03-30"
        accept = "application/json"

        def prepare_request(next_link=None):
            # Construct headers
            header_parameters = {}  # type: Dict[str, Any]
            header_parameters['Accept'] = self._serialize.header("accept", accept, 'str')

            if not next_link:
                # Construct URL
                url = self.list.metadata['url']  # type: ignore
                path_format_arguments = {
                    'resourceGroupName': self._serialize.url("resource_group_name", resource_group_name, 'str'),
                    'virtualMachineScaleSetName': self._serialize.url("virtual_machine_scale_set_name", virtual_machine_scale_set_name, 'str'),
                    'subscriptionId': self._serialize.url("self._config.subscription_id", self._config.subscription_id, 'str'),
                }
                url = self._client.format_url(url, **path_format_arguments)
                # Construct parameters
                query_parameters = {}  # type: Dict[str, Any]
                if filter is not None:
                    query_parameters['$filter'] = self._serialize.query("filter", filter, 'str')
                if select is not None:
                    query_parameters['$select'] = self._serialize.query("select", select, 'str')
                if expand is not None:
                    query_parameters['$expand'] = self._serialize.query("expand", expand, 'str')
                query_parameters['api-version'] = self._serialize.query("api_version", api_version, 'str')

                request = self._client.get(url, query_parameters, header_parameters)
            else:
                url = next_link
                query_parameters = {}  # type: Dict[str, Any]
                request = self._client.get(url, query_parameters, header_parameters)
            return request

        def extract_data(pipeline_response):
            deserialized = self._deserialize('VirtualMachineScaleSetVMListResult', pipeline_response)
            list_of_elem = deserialized.value
            if cls:
                list_of_elem = cls(list_of_elem)
            return deserialized.next_link or None, iter(list_of_elem)

        def get_next(next_link=None):
            request = prepare_request(next_link)

            pipeline_response = self._client._pipeline.run(request, stream=False, **kwargs)
            response = pipeline_response.http_response

            if response.status_code not in [200]:
                map_error(status_code=response.status_code, response=response, error_map=error_map)
                raise HttpResponseError(response=response, error_format=ARMErrorFormat)

            return pipeline_response

        return ItemPaged(
            get_next, extract_data
        )
    list.metadata = {'url': '/subscriptions/{subscriptionId}/resourceGroups/{resourceGroupName}/providers/Microsoft.Compute/virtualMachineScaleSets/{virtualMachineScaleSetName}/virtualMachines'}  # type: ignore

    def _power_off_initial(
        self,
        resource_group_name,  # type: str
        vm_scale_set_name,  # type: str
        instance_id,  # type: str
        **kwargs  # type: Any
    ):
        # type: (...) -> Optional["_models.OperationStatusResponse"]
        cls = kwargs.pop('cls', None)  # type: ClsType[Optional["_models.OperationStatusResponse"]]
        error_map = {
            401: ClientAuthenticationError, 404: ResourceNotFoundError, 409: ResourceExistsError
        }
        error_map.update(kwargs.pop('error_map', {}))
        api_version = "2017-03-30"
        accept = "application/json"

        # Construct URL
        url = self._power_off_initial.metadata['url']  # type: ignore
        path_format_arguments = {
            'resourceGroupName': self._serialize.url("resource_group_name", resource_group_name, 'str'),
            'vmScaleSetName': self._serialize.url("vm_scale_set_name", vm_scale_set_name, 'str'),
            'instanceId': self._serialize.url("instance_id", instance_id, 'str'),
            'subscriptionId': self._serialize.url("self._config.subscription_id", self._config.subscription_id, 'str'),
        }
        url = self._client.format_url(url, **path_format_arguments)

        # Construct parameters
        query_parameters = {}  # type: Dict[str, Any]
        query_parameters['api-version'] = self._serialize.query("api_version", api_version, 'str')

        # Construct headers
        header_parameters = {}  # type: Dict[str, Any]
        header_parameters['Accept'] = self._serialize.header("accept", accept, 'str')

        request = self._client.post(url, query_parameters, header_parameters)
        pipeline_response = self._client._pipeline.run(request, stream=False, **kwargs)
        response = pipeline_response.http_response

        if response.status_code not in [200, 202]:
            map_error(status_code=response.status_code, response=response, error_map=error_map)
            raise HttpResponseError(response=response, error_format=ARMErrorFormat)

        deserialized = None
        if response.status_code == 200:
            deserialized = self._deserialize('OperationStatusResponse', pipeline_response)

        if cls:
            return cls(pipeline_response, deserialized, {})

        return deserialized
    _power_off_initial.metadata = {'url': '/subscriptions/{subscriptionId}/resourceGroups/{resourceGroupName}/providers/Microsoft.Compute/virtualMachineScaleSets/{vmScaleSetName}/virtualmachines/{instanceId}/poweroff'}  # type: ignore

    def begin_power_off(
        self,
        resource_group_name,  # type: str
        vm_scale_set_name,  # type: str
        instance_id,  # type: str
        **kwargs  # type: Any
    ):
        # type: (...) -> LROPoller["_models.OperationStatusResponse"]
        """Power off (stop) a virtual machine in a VM scale set. Note that resources are still attached
        and you are getting charged for the resources. Instead, use deallocate to release resources and
        avoid charges.

        :param resource_group_name: The name of the resource group.
        :type resource_group_name: str
        :param vm_scale_set_name: The name of the VM scale set.
        :type vm_scale_set_name: str
        :param instance_id: The instance ID of the virtual machine.
        :type instance_id: str
        :keyword callable cls: A custom type or function that will be passed the direct response
        :keyword str continuation_token: A continuation token to restart a poller from a saved state.
        :keyword polling: True for ARMPolling, False for no polling, or a
         polling object for personal polling strategy
        :paramtype polling: bool or ~azure.core.polling.PollingMethod
        :keyword int polling_interval: Default waiting time between two polls for LRO operations if no Retry-After header is present.
        :return: An instance of LROPoller that returns either OperationStatusResponse or the result of cls(response)
        :rtype: ~azure.core.polling.LROPoller[~azure.mgmt.compute.v2017_03_30.models.OperationStatusResponse]
        :raises ~azure.core.exceptions.HttpResponseError:
        """
        polling = kwargs.pop('polling', True)  # type: Union[bool, PollingMethod]
        cls = kwargs.pop('cls', None)  # type: ClsType["_models.OperationStatusResponse"]
        lro_delay = kwargs.pop(
            'polling_interval',
            self._config.polling_interval
        )
        cont_token = kwargs.pop('continuation_token', None)  # type: Optional[str]
        if cont_token is None:
            raw_result = self._power_off_initial(
                resource_group_name=resource_group_name,
                vm_scale_set_name=vm_scale_set_name,
                instance_id=instance_id,
                cls=lambda x,y,z: x,
                **kwargs
            )

        kwargs.pop('error_map', None)
        kwargs.pop('content_type', None)

        def get_long_running_output(pipeline_response):
            deserialized = self._deserialize('OperationStatusResponse', pipeline_response)

            if cls:
                return cls(pipeline_response, deserialized, {})
            return deserialized

        path_format_arguments = {
            'resourceGroupName': self._serialize.url("resource_group_name", resource_group_name, 'str'),
            'vmScaleSetName': self._serialize.url("vm_scale_set_name", vm_scale_set_name, 'str'),
            'instanceId': self._serialize.url("instance_id", instance_id, 'str'),
            'subscriptionId': self._serialize.url("self._config.subscription_id", self._config.subscription_id, 'str'),
        }

        if polling is True: polling_method = ARMPolling(lro_delay, lro_options={'final-state-via': 'azure-async-operation'}, path_format_arguments=path_format_arguments,  **kwargs)
        elif polling is False: polling_method = NoPolling()
        else: polling_method = polling
        if cont_token:
            return LROPoller.from_continuation_token(
                polling_method=polling_method,
                continuation_token=cont_token,
                client=self._client,
                deserialization_callback=get_long_running_output
            )
        else:
            return LROPoller(self._client, raw_result, get_long_running_output, polling_method)
    begin_power_off.metadata = {'url': '/subscriptions/{subscriptionId}/resourceGroups/{resourceGroupName}/providers/Microsoft.Compute/virtualMachineScaleSets/{vmScaleSetName}/virtualmachines/{instanceId}/poweroff'}  # type: ignore

    def _restart_initial(
        self,
        resource_group_name,  # type: str
        vm_scale_set_name,  # type: str
        instance_id,  # type: str
        **kwargs  # type: Any
    ):
        # type: (...) -> Optional["_models.OperationStatusResponse"]
        cls = kwargs.pop('cls', None)  # type: ClsType[Optional["_models.OperationStatusResponse"]]
        error_map = {
            401: ClientAuthenticationError, 404: ResourceNotFoundError, 409: ResourceExistsError
        }
        error_map.update(kwargs.pop('error_map', {}))
        api_version = "2017-03-30"
        accept = "application/json"

        # Construct URL
        url = self._restart_initial.metadata['url']  # type: ignore
        path_format_arguments = {
            'resourceGroupName': self._serialize.url("resource_group_name", resource_group_name, 'str'),
            'vmScaleSetName': self._serialize.url("vm_scale_set_name", vm_scale_set_name, 'str'),
            'instanceId': self._serialize.url("instance_id", instance_id, 'str'),
            'subscriptionId': self._serialize.url("self._config.subscription_id", self._config.subscription_id, 'str'),
        }
        url = self._client.format_url(url, **path_format_arguments)

        # Construct parameters
        query_parameters = {}  # type: Dict[str, Any]
        query_parameters['api-version'] = self._serialize.query("api_version", api_version, 'str')

        # Construct headers
        header_parameters = {}  # type: Dict[str, Any]
        header_parameters['Accept'] = self._serialize.header("accept", accept, 'str')

        request = self._client.post(url, query_parameters, header_parameters)
        pipeline_response = self._client._pipeline.run(request, stream=False, **kwargs)
        response = pipeline_response.http_response

        if response.status_code not in [200, 202]:
            map_error(status_code=response.status_code, response=response, error_map=error_map)
            raise HttpResponseError(response=response, error_format=ARMErrorFormat)

        deserialized = None
        if response.status_code == 200:
            deserialized = self._deserialize('OperationStatusResponse', pipeline_response)

        if cls:
            return cls(pipeline_response, deserialized, {})

        return deserialized
    _restart_initial.metadata = {'url': '/subscriptions/{subscriptionId}/resourceGroups/{resourceGroupName}/providers/Microsoft.Compute/virtualMachineScaleSets/{vmScaleSetName}/virtualmachines/{instanceId}/restart'}  # type: ignore

    def begin_restart(
        self,
        resource_group_name,  # type: str
        vm_scale_set_name,  # type: str
        instance_id,  # type: str
        **kwargs  # type: Any
    ):
        # type: (...) -> LROPoller["_models.OperationStatusResponse"]
        """Restarts a virtual machine in a VM scale set.

        :param resource_group_name: The name of the resource group.
        :type resource_group_name: str
        :param vm_scale_set_name: The name of the VM scale set.
        :type vm_scale_set_name: str
        :param instance_id: The instance ID of the virtual machine.
        :type instance_id: str
        :keyword callable cls: A custom type or function that will be passed the direct response
        :keyword str continuation_token: A continuation token to restart a poller from a saved state.
        :keyword polling: True for ARMPolling, False for no polling, or a
         polling object for personal polling strategy
        :paramtype polling: bool or ~azure.core.polling.PollingMethod
        :keyword int polling_interval: Default waiting time between two polls for LRO operations if no Retry-After header is present.
        :return: An instance of LROPoller that returns either OperationStatusResponse or the result of cls(response)
        :rtype: ~azure.core.polling.LROPoller[~azure.mgmt.compute.v2017_03_30.models.OperationStatusResponse]
        :raises ~azure.core.exceptions.HttpResponseError:
        """
        polling = kwargs.pop('polling', True)  # type: Union[bool, PollingMethod]
        cls = kwargs.pop('cls', None)  # type: ClsType["_models.OperationStatusResponse"]
        lro_delay = kwargs.pop(
            'polling_interval',
            self._config.polling_interval
        )
        cont_token = kwargs.pop('continuation_token', None)  # type: Optional[str]
        if cont_token is None:
            raw_result = self._restart_initial(
                resource_group_name=resource_group_name,
                vm_scale_set_name=vm_scale_set_name,
                instance_id=instance_id,
                cls=lambda x,y,z: x,
                **kwargs
            )

        kwargs.pop('error_map', None)
        kwargs.pop('content_type', None)

        def get_long_running_output(pipeline_response):
            deserialized = self._deserialize('OperationStatusResponse', pipeline_response)

            if cls:
                return cls(pipeline_response, deserialized, {})
            return deserialized

        path_format_arguments = {
            'resourceGroupName': self._serialize.url("resource_group_name", resource_group_name, 'str'),
            'vmScaleSetName': self._serialize.url("vm_scale_set_name", vm_scale_set_name, 'str'),
            'instanceId': self._serialize.url("instance_id", instance_id, 'str'),
            'subscriptionId': self._serialize.url("self._config.subscription_id", self._config.subscription_id, 'str'),
        }

        if polling is True: polling_method = ARMPolling(lro_delay, lro_options={'final-state-via': 'azure-async-operation'}, path_format_arguments=path_format_arguments,  **kwargs)
        elif polling is False: polling_method = NoPolling()
        else: polling_method = polling
        if cont_token:
            return LROPoller.from_continuation_token(
                polling_method=polling_method,
                continuation_token=cont_token,
                client=self._client,
                deserialization_callback=get_long_running_output
            )
        else:
            return LROPoller(self._client, raw_result, get_long_running_output, polling_method)
    begin_restart.metadata = {'url': '/subscriptions/{subscriptionId}/resourceGroups/{resourceGroupName}/providers/Microsoft.Compute/virtualMachineScaleSets/{vmScaleSetName}/virtualmachines/{instanceId}/restart'}  # type: ignore

    def _start_initial(
        self,
        resource_group_name,  # type: str
        vm_scale_set_name,  # type: str
        instance_id,  # type: str
        **kwargs  # type: Any
    ):
        # type: (...) -> Optional["_models.OperationStatusResponse"]
        cls = kwargs.pop('cls', None)  # type: ClsType[Optional["_models.OperationStatusResponse"]]
        error_map = {
            401: ClientAuthenticationError, 404: ResourceNotFoundError, 409: ResourceExistsError
        }
        error_map.update(kwargs.pop('error_map', {}))
        api_version = "2017-03-30"
        accept = "application/json"

        # Construct URL
        url = self._start_initial.metadata['url']  # type: ignore
        path_format_arguments = {
            'resourceGroupName': self._serialize.url("resource_group_name", resource_group_name, 'str'),
            'vmScaleSetName': self._serialize.url("vm_scale_set_name", vm_scale_set_name, 'str'),
            'instanceId': self._serialize.url("instance_id", instance_id, 'str'),
            'subscriptionId': self._serialize.url("self._config.subscription_id", self._config.subscription_id, 'str'),
        }
        url = self._client.format_url(url, **path_format_arguments)

        # Construct parameters
        query_parameters = {}  # type: Dict[str, Any]
        query_parameters['api-version'] = self._serialize.query("api_version", api_version, 'str')

        # Construct headers
        header_parameters = {}  # type: Dict[str, Any]
        header_parameters['Accept'] = self._serialize.header("accept", accept, 'str')

        request = self._client.post(url, query_parameters, header_parameters)
        pipeline_response = self._client._pipeline.run(request, stream=False, **kwargs)
        response = pipeline_response.http_response

        if response.status_code not in [200, 202]:
            map_error(status_code=response.status_code, response=response, error_map=error_map)
            raise HttpResponseError(response=response, error_format=ARMErrorFormat)

        deserialized = None
        if response.status_code == 200:
            deserialized = self._deserialize('OperationStatusResponse', pipeline_response)

        if cls:
            return cls(pipeline_response, deserialized, {})

        return deserialized
    _start_initial.metadata = {'url': '/subscriptions/{subscriptionId}/resourceGroups/{resourceGroupName}/providers/Microsoft.Compute/virtualMachineScaleSets/{vmScaleSetName}/virtualmachines/{instanceId}/start'}  # type: ignore

    def begin_start(
        self,
        resource_group_name,  # type: str
        vm_scale_set_name,  # type: str
        instance_id,  # type: str
        **kwargs  # type: Any
    ):
        # type: (...) -> LROPoller["_models.OperationStatusResponse"]
        """Starts a virtual machine in a VM scale set.

        :param resource_group_name: The name of the resource group.
        :type resource_group_name: str
        :param vm_scale_set_name: The name of the VM scale set.
        :type vm_scale_set_name: str
        :param instance_id: The instance ID of the virtual machine.
        :type instance_id: str
        :keyword callable cls: A custom type or function that will be passed the direct response
        :keyword str continuation_token: A continuation token to restart a poller from a saved state.
        :keyword polling: True for ARMPolling, False for no polling, or a
         polling object for personal polling strategy
        :paramtype polling: bool or ~azure.core.polling.PollingMethod
        :keyword int polling_interval: Default waiting time between two polls for LRO operations if no Retry-After header is present.
        :return: An instance of LROPoller that returns either OperationStatusResponse or the result of cls(response)
        :rtype: ~azure.core.polling.LROPoller[~azure.mgmt.compute.v2017_03_30.models.OperationStatusResponse]
        :raises ~azure.core.exceptions.HttpResponseError:
        """
        polling = kwargs.pop('polling', True)  # type: Union[bool, PollingMethod]
        cls = kwargs.pop('cls', None)  # type: ClsType["_models.OperationStatusResponse"]
        lro_delay = kwargs.pop(
            'polling_interval',
            self._config.polling_interval
        )
        cont_token = kwargs.pop('continuation_token', None)  # type: Optional[str]
        if cont_token is None:
            raw_result = self._start_initial(
                resource_group_name=resource_group_name,
                vm_scale_set_name=vm_scale_set_name,
                instance_id=instance_id,
                cls=lambda x,y,z: x,
                **kwargs
            )

        kwargs.pop('error_map', None)
        kwargs.pop('content_type', None)

        def get_long_running_output(pipeline_response):
            deserialized = self._deserialize('OperationStatusResponse', pipeline_response)

            if cls:
                return cls(pipeline_response, deserialized, {})
            return deserialized

        path_format_arguments = {
            'resourceGroupName': self._serialize.url("resource_group_name", resource_group_name, 'str'),
            'vmScaleSetName': self._serialize.url("vm_scale_set_name", vm_scale_set_name, 'str'),
            'instanceId': self._serialize.url("instance_id", instance_id, 'str'),
            'subscriptionId': self._serialize.url("self._config.subscription_id", self._config.subscription_id, 'str'),
        }

        if polling is True: polling_method = ARMPolling(lro_delay, lro_options={'final-state-via': 'azure-async-operation'}, path_format_arguments=path_format_arguments,  **kwargs)
        elif polling is False: polling_method = NoPolling()
        else: polling_method = polling
        if cont_token:
            return LROPoller.from_continuation_token(
                polling_method=polling_method,
                continuation_token=cont_token,
                client=self._client,
                deserialization_callback=get_long_running_output
            )
        else:
            return LROPoller(self._client, raw_result, get_long_running_output, polling_method)
    begin_start.metadata = {'url': '/subscriptions/{subscriptionId}/resourceGroups/{resourceGroupName}/providers/Microsoft.Compute/virtualMachineScaleSets/{vmScaleSetName}/virtualmachines/{instanceId}/start'}  # type: ignore
