Example of method calls in GO

method_calls.go

package main

import (
	"fmt"
)

func main() {
  //Declare a pointer of type Human
  peter := new(Human)
  //The compile will dereference the pointer to make the call
  peter.sayHello()
}

//custom defined interface
type Person interface {
 sayHello()
}

//custom defined type
type Human struct {}

//Human type implements Person interface
func (p *Human) sayHello() { fmt.Println("Hello") }