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# Pyrogram - Telegram MTProto API Client Library for Python
# Copyright (C) 2017-present Dan <https://github.com/delivrance>
#
# This file is part of Pyrogram.
#
# Pyrogram is free software: you can redistribute it and/or modify
# it under the terms of the GNU Lesser General Public License as published
# by the Free Software Foundation, either version 3 of the License, or
# (at your option) any later version.
#
# Pyrogram 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 General Public License for more details.
#
# You should have received a copy of the GNU Lesser General Public License
# along with Pyrogram. If not, see <http://www.gnu.org/licenses/>.
import pyrogram
from pyrogram import raw
from pyrogram import types
class GetAppChangelog:
async def get_app_changelog(
self: "pyrogram.Client",
prev_app_version: str,
) -> "types.List":
"""Get the app changelog for a specific previous app version.
.. include:: /_includes/usable-by/users.rst
Parameters:
prev_app_version (``str``):
The previous app version string (e.g. ``"4.0.0"``).
Returns:
:obj:`~pyrogram.types.List` of :obj:`~pyrogram.types.Message`: The changelog messages.
Example:
.. code-block:: python
changelog = await app.get_app_changelog("4.0.0")
for msg in changelog:
print(msg.text)
"""
r = await self.invoke(
raw.functions.help.GetAppChangelog(
prev_app_version=prev_app_version
)
)
users = {i.id: i for i in r.users}
chats = {i.id: i for i in r.chats}
messages = types.List()
for i in r.updates:
if isinstance(i, (raw.types.UpdateNewMessage,
raw.types.UpdateNewChannelMessage)):
messages.append(
await types.Message._parse(
self, i.message, users, chats
)
)
return messages