(self, context, callback)
Passes authorization metadata into the given callback.

        Args:
            context (grpc.AuthMetadataContext): The RPC context.
            callback (grpc.AuthMetadataPluginCallback): The callback that will
                be invoked to pass in the authorization metadata.
Passes authorization metadata into the given callback.
Passes authorization metadata into the given callback .
def __call__(self, context, callback):
        """Passes authorization metadata into the given callback.

        Args:
            context (grpc.AuthMetadataContext): The RPC context.
            callback (grpc.AuthMetadataPluginCallback): The callback that will
                be invoked to pass in the authorization metadata.
        """
        callback(self._get_authorization_headers(context), None)
def __call__ ( self , context , callback ) : callback ( self . _get_authorization_headers ( context ) , None )