event: response.created
data: {"type":"response.created","response":{"id":"resp_tool_1","status":"in_progress"}}

event: response.output_item.added
data: {"type":"response.output_item.added","item":{"type":"function_call","id":"fc_1","call_id":"call_1","name":"get_weather","arguments":""}}

event: response.function_call_arguments.delta
data: {"type":"response.function_call_arguments.delta","item_id":"fc_1","delta":"{\"city\": \"Bei"}

event: response.function_call_arguments.delta
data: {"type":"response.function_call_arguments.delta","item_id":"fc_1","delta":"jing\"}"}

event: response.output_item.done
data: {"type":"response.output_item.done","item":{"type":"function_call","id":"fc_1","call_id":"call_1","name":"get_weather","arguments":"{\"city\": \"Beijing\"}"}}

event: response.completed
data: {"type":"response.completed","response":{"id":"resp_tool_1","status":"completed","usage":{"input_tokens":30,"output_tokens":12}}}

