PreparedInlineMessage constructor
      const
      PreparedInlineMessage({})
     
    
Creates a PreparedInlineMessage object.
Implementation
const factory PreparedInlineMessage({
  /// Unique identifier of the prepared message.
  @JsonKey(name: 'id') required String id,
  /// Expiration date of the prepared message, in Unix time. Expired prepared
  /// messages can no longer be used.
  @JsonKey(name: 'expiration_date') required int expirationDate,
}) = _PreparedInlineMessage;