class Google::Cloud::Storage::Service

def get_hmac_key access_id, project_id: nil, user_project: nil,

Returns Google::Apis::StorageV1::HmacKeyMetadata.
Retrieves an HMAC key's metadata.
# 
def get_hmac_key access_id, project_id: nil, user_project: nil,
                 options: {}
  execute do
    service.get_project_hmac_key \
      (project_id || @project), access_id,
      user_project: user_project(user_project),
      options: options
  end
end