code: func ObjectGoPrintDiff(a, b interface{}) string {
  	s := spew.ConfigState{DisableMethods: true}
  	return StringDiff(
  		s.Sprintf("%#v", a),
  		s.Sprintf("%#v", b),
  	)
  }
docs: // ObjectGoPrintDiff is like ObjectDiff, but uses go-spew to print the objects,
  // which shows absolutely everything by recursing into every single pointer
  // (go's %#v formatters OTOH stop at a certain point). This is needed when you
  // can't figure out why reflect.DeepEqual is returning false and nothing is
  // showing you differences. This will.