(self, token_exchange_endpoint, client_authentication=None)
Initializes an STS client instance.

        Args:
            token_exchange_endpoint (str): The token exchange endpoint.
            client_authentication (Optional(google.oauth2.oauth2_utils.ClientAuthentication)):
                The optional OAuth client authentication credentials if available.
Initializes an STS client instance.
Initializes an STS client instance .
def __init__(self, token_exchange_endpoint, client_authentication=None):
        """Initializes an STS client instance.

        Args:
            token_exchange_endpoint (str): The token exchange endpoint.
            client_authentication (Optional(google.oauth2.oauth2_utils.ClientAuthentication)):
                The optional OAuth client authentication credentials if available.
        """
        super(Client, self).__init__(client_authentication)
        self._token_exchange_endpoint = token_exchange_endpoint
def __init__ ( self , token_exchange_endpoint , client_authentication = None ) : super ( Client , self ) . __init__ ( client_authentication ) self . _token_exchange_endpoint = token_exchange_endpoint