mirror of
https://github.com/LonamiWebs/Telethon.git
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287 lines
10 KiB
Python
287 lines
10 KiB
Python
import time
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from .common import EventBuilder, EventCommon, name_inner_event
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from .. import utils
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from ..tl import types
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from ..tl.custom.sendergetter import SenderGetter
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_IGNORE_MAX_SIZE = 100 # len()
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_IGNORE_MAX_AGE = 5 # seconds
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# IDs to ignore, and when they were added. If it grows too large, we will
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# remove old entries. Although it should generally not be bigger than 10,
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# it may be possible some updates are not processed and thus not removed.
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_IGNORE_DICT = {}
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@name_inner_event
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class Album(EventBuilder):
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"""
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Occurs whenever you receive an album. This event only exists
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to ease dealing with an unknown amount of messages that belong
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to the same album.
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Example
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.. code-block:: python
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from telethon import events
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@client.on(events.Album)
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async def handler(event):
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# Counting how many photos or videos the album has
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print('Got an album with', len(event), 'items')
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# Forwarding the album as a whole to some chat
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event.forward_to(chat)
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# Printing the caption
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print(event.text)
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# Replying to the fifth item in the album
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await event.messages[4].reply('Cool!')
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"""
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def __init__(
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self, chats=None, *, blacklist_chats=False, func=None):
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super().__init__(chats, blacklist_chats=blacklist_chats, func=func)
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@classmethod
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def build(cls, update, others=None, self_id=None):
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if not others:
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return # We only care about albums which come inside the same Updates
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if isinstance(update,
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(types.UpdateNewMessage, types.UpdateNewChannelMessage)):
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if not isinstance(update.message, types.Message):
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return # We don't care about MessageService's here
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group = update.message.grouped_id
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if group is None:
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return # It must be grouped
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# Check whether we are supposed to skip this update, and
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# if we do also remove it from the ignore list since we
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# won't need to check against it again.
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if _IGNORE_DICT.pop(id(update), None):
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return
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# Check if the ignore list is too big, and if it is clean it
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now = time.time()
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if len(_IGNORE_DICT) > _IGNORE_MAX_SIZE:
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for i in [i for i, t in _IGNORE_DICT.items() if now - t > _IGNORE_MAX_AGE]:
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del _IGNORE_DICT[i]
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# Add the other updates to the ignore list
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for u in others:
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if u is not update:
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_IGNORE_DICT[id(u)] = now
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# Figure out which updates share the same group and use those
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return cls.Event([
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u.message for u in others
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if (isinstance(u, (types.UpdateNewMessage, types.UpdateNewChannelMessage))
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and isinstance(u.message, types.Message)
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and u.message.grouped_id == group)
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])
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class Event(EventCommon, SenderGetter):
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"""
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Represents the event of a new album.
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Members:
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messages (Sequence[`Message <telethon.tl.custom.message.Message>`]):
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The list of messages belonging to the same album.
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"""
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def __init__(self, messages):
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message = messages[0]
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if not message.out and isinstance(message.to_id, types.PeerUser):
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# Incoming message (e.g. from a bot) has to_id=us, and
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# from_id=bot (the actual "chat" from a user's perspective).
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chat_peer = types.PeerUser(message.from_id)
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else:
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chat_peer = message.to_id
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super().__init__(chat_peer=chat_peer,
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msg_id=message.id, broadcast=bool(message.post))
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SenderGetter.__init__(self, message.sender_id)
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self.messages = messages
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def _set_client(self, client):
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super()._set_client(client)
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self._sender, self._input_sender = utils._get_entity_pair(
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self.sender_id, self._entities, client._entity_cache)
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for msg in self.messages:
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msg._finish_init(client, self._entities, None)
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@property
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def grouped_id(self):
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"""
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The shared ``grouped_id`` between all the messages.
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"""
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return self.messages[0].grouped_id
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@property
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def text(self):
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"""
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The message text of the first photo with a caption,
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formatted using the client's default parse mode.
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"""
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return next((m.text for m in self.messages if m.text), '')
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@property
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def raw_text(self):
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"""
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The raw message text of the first photo
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with a caption, ignoring any formatting.
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"""
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return next((m.raw_text for m in self.messages if m.raw_text), '')
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@property
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def is_reply(self):
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"""
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`True` if the album is a reply to some other message.
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Remember that you can access the ID of the message
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this one is replying to through `reply_to_msg_id`,
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and the `Message` object with `get_reply_message()`.
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"""
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# Each individual message in an album all reply to the same message
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return self.messages[0].is_reply
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@property
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def forward(self):
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"""
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The `Forward <telethon.tl.custom.forward.Forward>`
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information for the first message in the album if it was forwarded.
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"""
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# Each individual message in an album all reply to the same message
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return self.messages[0].forward
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# endregion Public Properties
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# region Public Methods
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async def get_reply_message(self):
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"""
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The `Message <telethon.tl.custom.message.Message>`
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that this album is replying to, or `None`.
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The result will be cached after its first use.
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"""
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return await self.messages[0].get_reply_message()
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async def respond(self, *args, **kwargs):
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"""
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Responds to the album (not as a reply). Shorthand for
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`telethon.client.messages.MessageMethods.send_message`
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with ``entity`` already set.
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"""
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return await self.messages[0].respond(*args, **kwargs)
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async def reply(self, *args, **kwargs):
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"""
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Replies to the first photo in the album (as a reply). Shorthand
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for `telethon.client.messages.MessageMethods.send_message`
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with both ``entity`` and ``reply_to`` already set.
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"""
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return await self.messages[0].reply(*args, **kwargs)
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async def forward_to(self, *args, **kwargs):
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"""
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Forwards the entire album. Shorthand for
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`telethon.client.messages.MessageMethods.forward_messages`
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with both ``messages`` and ``from_peer`` already set.
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"""
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if self._client:
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kwargs['messages'] = self.messages
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kwargs['as_album'] = True
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kwargs['from_peer'] = await self.get_input_chat()
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return await self._client.forward_messages(*args, **kwargs)
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async def edit(self, *args, **kwargs):
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"""
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Edits the first caption or the message, or the first messages'
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caption if no caption is set, iff it's outgoing. Shorthand for
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`telethon.client.messages.MessageMethods.edit_message`
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with both ``entity`` and ``message`` already set.
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Returns `None` if the message was incoming,
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or the edited `Message` otherwise.
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.. note::
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This is different from `client.edit_message
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<telethon.client.messages.MessageMethods.edit_message>`
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and **will respect** the previous state of the message.
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For example, if the message didn't have a link preview,
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the edit won't add one by default, and you should force
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it by setting it to `True` if you want it.
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This is generally the most desired and convenient behaviour,
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and will work for link previews and message buttons.
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"""
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for msg in self.messages:
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if msg.raw_text:
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return await msg.edit(*args, **kwargs)
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return await self.messages[0].edit(*args, **kwargs)
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async def delete(self, *args, **kwargs):
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"""
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Deletes the entire album. You're responsible for checking whether
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you have the permission to do so, or to except the error otherwise.
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Shorthand for
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`telethon.client.messages.MessageMethods.delete_messages` with
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``entity`` and ``message_ids`` already set.
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"""
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if self._client:
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return await self._client.delete_messages(
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await self.get_input_chat(), self.messages,
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*args, **kwargs
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)
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async def mark_read(self):
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"""
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Marks the entire album as read. Shorthand for
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`client.send_read_acknowledge()
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<telethon.client.messages.MessageMethods.send_read_acknowledge>`
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with both ``entity`` and ``message`` already set.
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"""
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if self._client:
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await self._client.send_read_acknowledge(
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await self.get_input_chat(), max_id=self.messages[-1].id)
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async def pin(self, *, notify=False):
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"""
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Pins the first photo in the album. Shorthand for
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`telethon.client.messages.MessageMethods.pin_message`
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with both ``entity`` and ``message`` already set.
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"""
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return await self.messages[0].pin(notify=notify)
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def __len__(self):
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"""
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Return the amount of messages in the album.
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Equivalent to ``len(self.messages)``.
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"""
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return len(self.messages)
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def __iter__(self):
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"""
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Iterate over the messages in the album.
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Equivalent to ``iter(self.messages)``.
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"""
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return iter(self.messages)
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def __getitem__(self, n):
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"""
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Access the n'th message in the album.
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Equivalent to ``event.messages[n]``.
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"""
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return self.messages[n]
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