main.go

package main

func main() {
	task := model.NewTask()
	err := task.Create(model.Task{
		Rate: "* * * * *",
		Key:  "hi world",
	})
}

task.go

package model

// T struct
type T struct{}

// Task struct
type Task struct {
	Key  string
	Rate string
}

// NewTask create a new task instance
func NewTask() T {
	return T{}
}

// Create events
func (T) Create(t Task) ([]Event, error) {
	var events []Event
	return events, nil
}