poll

record poll {
  allows-multiple-answers: bool,
  close-date: option​<s32>,
  correct-option-id: option​<s32>,
  explanation: option​<string>,
  explanation-entities: option​<list​<message-entity>>,
  id: string,
  is-anonymous: bool,
  is-closed: bool,
  open-period: option​<s32>,
  options: list​<poll-option>,
  question: string,
  total-voter-count: s32,
  type-op: string,
}