usage: caom2-repo read [-h]
                       [--cert CERT | -n | --netrc-file NETRC_FILE | -u USER]
                       [--resource-id RESOURCE_ID] [-q | -v] [--output OUTPUT]
                       collection observationID

Read an existing observation

positional arguments:
  collection            collection name in CAOM2 repo
  observationID         observation identifier

optional arguments:
  --cert CERT           location of your X509 certificate to use for
                        authentication (unencrypted, in PEM format)
  -h, --help            show this help message and exit
  -n                    use .netrc in $HOME for authentication
  --netrc-file NETRC_FILE
                        netrc file to use for authentication
  --output, -o OUTPUT   destination file
  -q, --quiet           run quietly
  --resource-id RESOURCE_ID
                        resource identifier (default ivo://cadc.nrc.ca/ams)
  -u, --user USER       name of user to authenticate. Note: application
                        prompts for the corresponding password!
  -v, --verbose         verbose messages
