def METHOD_NAME(key_type: Optional[pulumi.Input[Optional['KeyType']]] = None,
                                      not_after: Optional[pulumi.Input[Optional[str]]] = None,
                                      resource_group_name: Optional[pulumi.Input[str]] = None,
                                      workflow_name: Optional[pulumi.Input[str]] = None,
                                      opts: Optional[pulumi.InvokeOptions] = None) -> pulumi.Output[ListWorkflowCallbackUrlResult]:
    """
    Get the workflow callback Url.
    :param 'KeyType' key_type: The key type.
    :param str not_after: The expiry time.
    :param str resource_group_name: The resource group name.
    :param str workflow_name: The workflow name.
    """
    ...