'Use this method to add a new sticker to a set created by the bot. Returns True on success.
:param user_id:
:param name:
:param png_sticker:
:param emojis:
:param mask_position:
:return:'

def add_sticker_to_set(self, user_id, name, png_sticker, emojis, mask_position):

    return apihelper.add_sticker_to_set(self.token, user_id, name, png_sticker, emojis, mask_position)
