add api_config_anthos.yaml (#3407)
add api_config_anthos.yaml (#3407)

* add api_config_anthos.yaml

* add usage

Co-authored-by: Kurtis Van Gent <dbdae6c357ede9a5d333d52f7521158034e34b9f@users.noreply.github.com>
GoogleCloudPlatform/python-docs-samples,GoogleCloudPlatform/python-docs-samples,GoogleCloudPlatform/python-docs-samples,GoogleCloudPlatform/python-docs-samples