(self, request, credentials, service_account_email)
Args:
            request (google.auth.transport.Request): The object used to make
                HTTP requests.
            credentials (google.auth.credentials.Credentials): The credentials
                that will be used to authenticate the request to the IAM API.
                The credentials must have of one the following scopes:

                - https://www.googleapis.com/auth/iam
                - https://www.googleapis.com/auth/cloud-platform
            service_account_email (str): The service account email identifying
                which service account to use to sign bytes. Often, this can
                be the same as the service account email in the given
                credentials.
Args:
            request (google.auth.transport.Request): The object used to make
                HTTP requests.
            credentials (google.auth.credentials.Credentials): The credentials
                that will be used to authenticate the request to the IAM API.
                The credentials must have of one the following scopes:
Args : request ( google . auth . transport . Request ) : The object used to make HTTP requests . credentials ( google . auth . credentials . Credentials ) : The credentials that will be used to authenticate the request to the IAM API . The credentials must have of one the following scopes :
def __init__(self, request, credentials, service_account_email):
        """
        Args:
            request (google.auth.transport.Request): The object used to make
                HTTP requests.
            credentials (google.auth.credentials.Credentials): The credentials
                that will be used to authenticate the request to the IAM API.
                The credentials must have of one the following scopes:

                - https://www.googleapis.com/auth/iam
                - https://www.googleapis.com/auth/cloud-platform
            service_account_email (str): The service account email identifying
                which service account to use to sign bytes. Often, this can
                be the same as the service account email in the given
                credentials.
        """
        self._request = request
        self._credentials = credentials
        self._service_account_email = service_account_email
def __init__ ( self , request , credentials , service_account_email ) : self . _request = request self . _credentials = credentials self . _service_account_email = service_account_email