combine methods and functions that have the same primary argument, i.e. handle methods that are defined with the object and functions that are defined afterwards for this object (in another library) the same way.

gistfile1.go

package main

import "fmt"

type Foo struct{}
func (f *Foo) Method() {
  fmt.Println("Method")
}

type Funcs []func(*Foo)

func Other(f *Foo) {
	fmt.Println("Other")
} 

func main() {
	var fns = Funcs{}
	fn := (*Foo).Method
	fns = append(fns, fn)
        fns = append(fns, Other)
	var foo Foo
	for _, ff := range fns {
		ff(&foo)
	}
	//fn(&foo)
}