There is a command group 'az_communication_chat_message'. This group of commands could 'commands to manage messages in a chat thread of a communication service resource'. The group of commands has global parameter '--debug' which means 'Increase logging verbosity to show all debug logs.'. The group of commands has global parameter '--help -h' which means 'Show this help message and exit.'. The group of commands has global parameter '--only-show-errors' which means 'Only show errors, suppressing warnings.'. The group of commands has global parameter '--output -o' which means 'Output format.'. The group of commands has global parameter '--query' which means 'JMESPath query string. See <a href="http://jmespath.org/">http://jmespath.org/</a> for more information and examples.'. The group of commands has global parameter '--subscription' which means 'Name or ID of subscription. You can configure the default subscription using `az account set -s NAME_OR_ID`.'. The group of commands has global parameter '--verbose' which means 'Increase logging verbosity. Use --debug for full debug logs.'. This group contains a child command 'az_communication_chat_message_get'.The syntax is: az communication chat message get --message-id
                                  --thread
                                  [--access-token]
                                  [--endpoint]. The 1th example of the child command would be to use it to 'get message', the syntax is: az communication chat message get --thread "19:a-bcd=xyz" --message-id "12345678". The parameter '--message-id' is required. It is used to message id.. The parameter '--thread -t' is required. It is used to thread id.. The parameter '--access-token' is optional. communication access token. environment variable: azure_communication_access_token.. The parameter '--endpoint' is optional. communication endpoint. environment variable: azure_communication_endpoint.. 