This is a simple client library for version V1 of the IAM Service Account
Credentials API. It provides:
- A client object that connects to the HTTP/JSON REST endpoint for the service.
- Ruby objects for data structures related to the service.
- Integration with the googleauth gem for authentication using OAuth, API keys,
  and service accounts.
- Control of retry, pagination, and timeouts.

WWW: https://github.com/googleapis/google-api-ruby-client
WWW: https://github.com/googleapis/google-api-ruby-client/tree/master/generated/google-apis-iamcredentials_v1