def METHOD_NAME(function_name):
    """
    Creates a Lambda Service ResourceNotFound Response
    Parameters
    ----------
    function_name str
        Name of the function that was requested to invoke
    Returns
    -------
    Flask.Response
        A response object representing the ResourceNotFound Error
    """
    exception_tuple = LambdaErrorResponses.ResourceNotFoundException
    return BaseLocalService.service_response(
        LambdaErrorResponses._construct_error_response_body(
            LambdaErrorResponses.USER_ERROR,
            "Function not found: arn:aws:lambda:us-west-2:012345678901:function:{}".format(function_name),
        ),
        LambdaErrorResponses._construct_headers(exception_tuple[0]),
        exception_tuple[1],
    )