code: func (inst *Instagram) GetMedia(o interface{}) (*FeedMedia, error) {
  	media := &FeedMedia{
  		inst:   inst,
  		NextID: o,
  	}
  	return media, media.Sync()
  }
docs: // GetMedia returns media specified by id.
  //
  // The argument can be int64 or string
  //
  // See example: examples/media/like.go