Option media; pass null if none. Must be one of the following types: inputPollMediaAnimation, inputPollMediaLink, inputPollMediaLocation, inputPollMediaPhoto, inputPollMediaSticker, inputPollMediaVenue, or inputPollMediaVideo without caption.
Option text; 1-100 characters. Only custom emoji entities are allowed to be added and only by Premium users.
Describes one answer option of a poll to be created.