text: #!/usr/bin/env python
  #
  # A library that provides a Python interface to the Telegram Bot API
  # Copyright (C) 2015-2020
  # Leandro Toledo de Souza <devs@python-telegram-bot.org>
  #
  # This program is free software: you can redistribute it and/or modify
  # it under the terms of the GNU Lesser Public License as published by
  # the Free Software Foundation, either version 3 of the License, or
  # (at your option) any later version.
  #
  # This program is distributed in the hope that it will be useful,
  # but WITHOUT ANY WARRANTY; without even the implied warranty of
  # MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  # GNU Lesser Public License for more details.
  #
  # You should have received a copy of the GNU Lesser Public License
  # along with this program.  If not, see [http://www.gnu.org/licenses/].
  """This module contains an object that represents a Telegram ChatMember."""
  import datetime
  from typing import TYPE_CHECKING, Any, Optional, ClassVar
  
  from telegram import TelegramObject, User, constants
  from telegram.utils.helpers import from_timestamp, to_timestamp
  from telegram.utils.types import JSONDict
  
  if TYPE_CHECKING:
      from telegram import Bot
  
  
  class ChatMember(TelegramObject):
      """This object contains information about one member of a chat.
  
      Objects of this class are comparable in terms of equality. Two objects of this class are
      considered equal, if their :attr:`user` and :attr:`status` are equal.
  
      Attributes:
          user (:class:`telegram.User`): Information about the user.
          status (:obj:`str`): The member's status in the chat.
          custom_title (:obj:`str`): Optional. Custom title for owner and administrators.
          is_anonymous (:obj:`bool`): Optional. :obj:`True`, if the user's presence in the chat is
              hidden.
          until_date (:class:`datetime.datetime`): Optional. Date when restrictions will be lifted
              for this user.
          can_be_edited (:obj:`bool`): Optional. If the bot is allowed to edit administrator
              privileges of that user.
          can_change_info (:obj:`bool`): Optional. If the user can change the chat title, photo and
              other settings.
          can_post_messages (:obj:`bool`): Optional. If the administrator can post in the channel.
          can_edit_messages (:obj:`bool`): Optional. If the administrator can edit messages of other
              users.
          can_delete_messages (:obj:`bool`): Optional. If the administrator can delete messages of
              other users.
          can_invite_users (:obj:`bool`): Optional. If the user can invite new users to the chat.
          can_restrict_members (:obj:`bool`): Optional. If the administrator can restrict, ban or
              unban chat members.
          can_pin_messages (:obj:`bool`): Optional. If the user can pin messages.
          can_promote_members (:obj:`bool`): Optional. If the administrator can add new
              administrators.
          is_member (:obj:`bool`): Optional. Restricted only. :obj:`True`, if the user is a member of
              the chat at the moment of the request.
          can_send_messages (:obj:`bool`): Optional. If the user can send text messages, contacts,
              locations and venues.
          can_send_media_messages (:obj:`bool`): Optional. If the user can send media messages,
              implies can_send_messages.
          can_send_polls (:obj:`bool`): Optional. :obj:`True`, if the user is allowed to
              send polls.
          can_send_other_messages (:obj:`bool`): Optional. If the user can send animations, games,
              stickers and use inline bots, implies can_send_media_messages.
          can_add_web_page_previews (:obj:`bool`): Optional. If user may add web page previews to his
              messages, implies can_send_media_messages
  
      Args:
          user (:class:`telegram.User`): Information about the user.
          status (:obj:`str`): The member's status in the chat. Can be 'creator', 'administrator',
              'member', 'restricted', 'left' or 'kicked'.
          custom_title (:obj:`str`, optional): Owner and administrators only.
              Custom title for this user.
          is_anonymous (:obj:`bool`, optional): Owner and administrators only. :obj:`True`, if the
              user's presence in the chat is hidden.
          until_date (:class:`datetime.datetime`, optional): Restricted and kicked only. Date when
              restrictions will be lifted for this user.
          can_be_edited (:obj:`bool`, optional): Administrators only. :obj:`True`, if the bot is
              allowed to edit administrator privileges of that user.
          can_change_info (:obj:`bool`, optional): Administrators and restricted only. :obj:`True`,
              if the user can change the chat title, photo and other settings.
          can_post_messages (:obj:`bool`, optional): Administrators only. :obj:`True`, if the
              administrator can post in the channel, channels only.
          can_edit_messages (:obj:`bool`, optional): Administrators only. :obj:`True`, if the
              administrator can edit messages of other users and can pin messages; channels only.
          can_delete_messages (:obj:`bool`, optional): Administrators only. :obj:`True`, if the
              administrator can delete messages of other users.
          can_invite_users (:obj:`bool`, optional): Administrators and restricted only. :obj:`True`,
              if the user can invite new users to the chat.
          can_restrict_members (:obj:`bool`, optional): Administrators only. :obj:`True`, if the
              administrator can restrict, ban or unban chat members.
          can_pin_messages (:obj:`bool`, optional): Administrators and restricted only. :obj:`True`,
              if the user can pin messages, groups and supergroups only.
          can_promote_members (:obj:`bool`, optional): Administrators only. :obj:`True`, if the
              administrator can add new administrators with a subset of his own privileges or demote
              administrators that he has promoted, directly or indirectly (promoted by administrators
              that were appointed by the user).
          is_member (:obj:`bool`, optional): Restricted only. :obj:`True`, if the user is a member of
              the chat at the moment of the request.
          can_send_messages (:obj:`bool`, optional): Restricted only. :obj:`True`, if the user can
              send text messages, contacts, locations and venues.
          can_send_media_messages (:obj:`bool`, optional): Restricted only. :obj:`True`, if the user
              can send audios, documents, photos, videos, video notes and voice notes.
          can_send_polls (:obj:`bool`, optional): Restricted only. :obj:`True`, if the user is
              allowed to send polls.
          can_send_other_messages (:obj:`bool`, optional): Restricted only. :obj:`True`, if the user
              can send animations, games, stickers and use inline bots.
          can_add_web_page_previews (:obj:`bool`, optional): Restricted only. :obj:`True`, if user
              may add web page previews to his messages.
  
      """
  
      ADMINISTRATOR: ClassVar[str] = constants.CHATMEMBER_ADMINISTRATOR
      """:const:`telegram.constants.CHATMEMBER_ADMINISTRATOR`"""
      CREATOR: ClassVar[str] = constants.CHATMEMBER_CREATOR
      """:const:`telegram.constants.CHATMEMBER_CREATOR`"""
      KICKED: ClassVar[str] = constants.CHATMEMBER_KICKED
      """:const:`telegram.constants.CHATMEMBER_KICKED`"""
      LEFT: ClassVar[str] = constants.CHATMEMBER_LEFT
      """:const:`telegram.constants.CHATMEMBER_LEFT`"""
      MEMBER: ClassVar[str] = constants.CHATMEMBER_MEMBER
      """:const:`telegram.constants.CHATMEMBER_MEMBER`"""
      RESTRICTED: ClassVar[str] = constants.CHATMEMBER_RESTRICTED
      """:const:`telegram.constants.CHATMEMBER_RESTRICTED`"""
  
      def __init__(
          self,
          user: User,
          status: str,
          until_date: datetime.datetime = None,
          can_be_edited: bool = None,
          can_change_info: bool = None,
          can_post_messages: bool = None,
          can_edit_messages: bool = None,
          can_delete_messages: bool = None,
          can_invite_users: bool = None,
          can_restrict_members: bool = None,
          can_pin_messages: bool = None,
          can_promote_members: bool = None,
          can_send_messages: bool = None,
          can_send_media_messages: bool = None,
          can_send_polls: bool = None,
          can_send_other_messages: bool = None,
          can_add_web_page_previews: bool = None,
          is_member: bool = None,
          custom_title: str = None,
          is_anonymous: bool = None,
          **_kwargs: Any,
      ):
          # Required
          self.user = user
          self.status = status
  
          # Optionals
          self.custom_title = custom_title
          self.is_anonymous = is_anonymous
          self.until_date = until_date
          self.can_be_edited = can_be_edited
          self.can_change_info = can_change_info
          self.can_post_messages = can_post_messages
          self.can_edit_messages = can_edit_messages
          self.can_delete_messages = can_delete_messages
          self.can_invite_users = can_invite_users
          self.can_restrict_members = can_restrict_members
          self.can_pin_messages = can_pin_messages
          self.can_promote_members = can_promote_members
          self.can_send_messages = can_send_messages
          self.can_send_media_messages = can_send_media_messages
          self.can_send_polls = can_send_polls
          self.can_send_other_messages = can_send_other_messages
          self.can_add_web_page_previews = can_add_web_page_previews
          self.is_member = is_member
  
          self._id_attrs = (self.user, self.status)
  
      @classmethod
      def de_json(cls, data: Optional[JSONDict], bot: 'Bot') -> Optional['ChatMember']:
          data = cls.parse_data(data)
  
          if not data:
              return None
  
          data['user'] = User.de_json(data.get('user'), bot)
          data['until_date'] = from_timestamp(data.get('until_date', None))
  
          return cls(**data)
  
      def to_dict(self) -> JSONDict:
          data = super().to_dict()
  
          data['until_date'] = to_timestamp(self.until_date)
  
          return data
  