You are an expert in writing code in many different languages. Your goal is to perform code completion for the following code, keeping in mind the rest of the code and the file meta data.
    Metadata details:
    filename: cron.go
    path of file: ./repos/mgmt/engine/resources
    
    the code of the file until where you have to start completion: // Mgmt
// Copyright (C) 2013-2024+ James Shubin and the project contributors
// Written by James Shubin <james@shubin.ca> and the project contributors
//
// This program is free software: you can redistribute it and/or modify
// it under the terms of the GNU General Public License as published by
// the Free Software Foundation, either version 3 of the License, or
// (at your option) any later versi
    
func (obj *CronRes) UnmarshalYAML(unmarshal func(interface{}) error) error {
	type rawRes CronRes // indirection to avoid infinite recursion

	def := obj.Default()      // get the default
	res, ok := def.(*CronRes) // put in the right format
	if !ok {
		return fmt.Errorf("could not convert to CronRes")
	}
	raw := rawRes(*res) // convert; the defaults go here

	if err := unmarshal(&raw); err != nil {
		return err
	}

	*obj = CronRes(raw) // restore from indirection with type conversion!
	return nil
}