added get_permissions method from #1574

telethon/client/chats.py

@@ -1145,6 +1145,23 @@ class ChatMethods:
         else:
             raise ValueError('You must pass either a channel or a chat')
 
+    async def get_permissions(
+            self: 'TelegramClient',
+            channel: 'hints.EntityLike',
+            user: 'hints.EntityLike'
+    ) -> 'custom.ParticipantPermissions':
+        channel = await self.get_input_entity(channel)
+        user = await self.get_input_entity(user)
+        if helpers._entity_type(user) != helpers._EntityType.USER:
+            raise ValueError('You must pass a user entity')
+        if helpers._entity_type(channel) != helpers._EntityType.CHANNEL:
+            raise ValueError('You must pass a channel entity')
+        participant = await self(functions.channels.GetParticipantRequest(
+            channel,
+            user
+        ))
+        return custom.ParticipantPermissions(participant.participant)
+
     async def get_stats(
             self: 'TelegramClient',
             entity: 'hints.EntityLike',

telethon/tl/custom/__init__.py

@@ -11,3 +11,4 @@ from .inlineresult import InlineResult
 from .inlineresults import InlineResults
 from .conversation import Conversation
 from .qrlogin import QRLogin
+from .userpermissions import ParticipantPermissions

telethon/tl/custom/participantpermissions.py

@@ -0,0 +1,29 @@
+from .. import types
+
+
+class ParticipantPermissions:
+    """
+    Participant permissions information
+    """
+    def __init__(self, participant):
+        self.participant = participant
+
+    @property
+    def is_admin(self):
+        return self.is_creator or isinstance(self.participant, types.ChannelParticipantAdmin)
+
+    @property
+    def is_creator(self):
+        return isinstance(self.participant, types.ChannelParticipantCreator)
+
+    @property
+    def is_default_permissions(self):
+        return isinstance(self.participant, types.ChannelParticipant)
+
+    @property
+    def is_banned(self):
+        return isinstance(self.participant, types.ChannelParticipantBanned)
+
+    @property
+    def is_self(self):
+        return isinstance(self.participant, types.ChannelParticipantSelf)