'Directly invoke a named Lambda function with a payload.
Returns the response.'

def invoke_lambda_function(self, function_name, payload, invocation_type='Event', log_type='Tail', client_context=None, qualifier=None):

    return self.lambda_client.invoke(FunctionName=function_name, InvocationType=invocation_type, LogType=log_type, Payload=payload)
