outgoing.go
func NewInlineQueryResultMpeg4Gif(id, mpeg4URL, thumbURL string) *InlineQueryResultMpeg4Gif {
	return &InlineQueryResultMpeg4Gif{
		InlineQueryResultBase: InlineQueryResultBase{
			Type: PhotoResult,
			ID:   id,
		},
		Mpeg4URL: mpeg4URL,
		ThumbURL: thumbURL,
	}
}
func NewInlineQueryResultMpeg4Gif(id, mpeg4URL, thumbURL string) *InlineQueryResultMpeg4Gif {
	return &InlineQueryResultMpeg4Gif{
		InlineQueryResultBase: InlineQueryResultBase{
			Type: PhotoResult,
			ID:   id,
		},
		Mpeg4URL: mpeg4URL,
		ThumbURL: thumbURL,
	}
}
// NewInlineQueryResultMpeg4Gif returns a new InlineQueryResultMpeg4Gif
// with all mandatory fields set.