diff --git a/pyrogram/__init__.py b/pyrogram/__init__.py
index ddf7c275..6cd63655 100644
--- a/pyrogram/__init__.py
+++ b/pyrogram/__init__.py
@@ -24,7 +24,7 @@ if sys.version_info[:3] in [(3, 5, 0), (3, 5, 1), (3, 5, 2)]:
     # Monkey patch the standard "typing" module because Python versions from 3.5.0 to 3.5.2 have a broken one.
     sys.modules["typing"] = typing
 
-__version__ = "0.14.0-asyncio"
+__version__ = "0.14.1-asyncio"
 __license__ = "GNU Lesser General Public License v3 or later (LGPLv3+)"
 __copyright__ = "Copyright (C) 2017-2019 Dan <https://github.com/delivrance>"
 
diff --git a/pyrogram/client/client.py b/pyrogram/client/client.py
index d81c3707..98bcb8c5 100644
--- a/pyrogram/client/client.py
+++ b/pyrogram/client/client.py
@@ -884,7 +884,7 @@ class Client(Methods, BaseClient):
                 temp_file_path = await self.get_file(
                     media_type=data.media_type,
                     dc_id=data.dc_id,
-                    file_id=data.file_id,
+                    document_id=data.document_id,
                     access_hash=data.access_hash,
                     thumb_size=data.thumb_size,
                     peer_id=data.peer_id,
@@ -1544,7 +1544,7 @@ class Client(Methods, BaseClient):
 
     async def get_file(self, media_type: int,
                        dc_id: int,
-                       file_id: int,
+                       document_id: int,
                        access_hash: int,
                        thumb_size: str,
                        peer_id: int,
@@ -1604,21 +1604,21 @@ class Client(Methods, BaseClient):
             )
         elif media_type in (0, 2):
             location = types.InputPhotoFileLocation(
-                id=file_id,
+                id=document_id,
                 access_hash=access_hash,
                 file_reference=b"",
                 thumb_size=thumb_size
             )
         elif media_type == 14:
             location = types.InputDocumentFileLocation(
-                id=file_id,
+                id=document_id,
                 access_hash=access_hash,
                 file_reference=b"",
                 thumb_size=thumb_size
             )
         else:
             location = types.InputDocumentFileLocation(
-                id=file_id,
+                id=document_id,
                 access_hash=access_hash,
                 file_reference=b"",
                 thumb_size=""
diff --git a/pyrogram/client/ext/__init__.py b/pyrogram/client/ext/__init__.py
index 917c9e62..58897c55 100644
--- a/pyrogram/client/ext/__init__.py
+++ b/pyrogram/client/ext/__init__.py
@@ -20,3 +20,5 @@ from .base_client import BaseClient
 from .dispatcher import Dispatcher
 from .emoji import Emoji
 from .syncer import Syncer
+from .file_data import FileData
+
diff --git a/pyrogram/client/ext/base_client.py b/pyrogram/client/ext/base_client.py
index 276e65fc..302d3ede 100644
--- a/pyrogram/client/ext/base_client.py
+++ b/pyrogram/client/ext/base_client.py
@@ -20,7 +20,6 @@ import asyncio
 import os
 import platform
 import re
-from collections import namedtuple
 
 from pyrogram import __version__
 from ..style import Markdown, HTML
@@ -83,10 +82,6 @@ class BaseClient:
 
             mime_types_to_extensions[mime_type] = " ".join(extensions)
 
-    fields = ("media_type", "dc_id", "file_id", "access_hash", "thumb_size", "peer_id", "volume_id", "local_id",
-              "is_big", "file_size", "mime_type", "file_name", "date")
-    FileData = namedtuple("FileData", fields, defaults=(None,) * len(fields))
-
     def __init__(self):
         self.is_bot = None
         self.dc_id = None
diff --git a/pyrogram/client/ext/file_data.py b/pyrogram/client/ext/file_data.py
new file mode 100644
index 00000000..9a19cd5d
--- /dev/null
+++ b/pyrogram/client/ext/file_data.py
@@ -0,0 +1,38 @@
+# Pyrogram - Telegram MTProto API Client Library for Python
+# Copyright (C) 2017-2019 Dan Tès <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/>.
+
+
+class FileData:
+    def __init__(
+        self, *, media_type: int = None, dc_id: int = None, document_id: int = None, access_hash: int = None,
+        thumb_size: str = None, peer_id: int = None, volume_id: int = None, local_id: int = None, is_big: bool = None,
+        file_size: int = None, mime_type: str = None, file_name: str = None, date: int = None
+    ):
+        self.media_type = media_type
+        self.dc_id = dc_id
+        self.document_id = document_id
+        self.access_hash = access_hash
+        self.thumb_size = thumb_size
+        self.peer_id = peer_id
+        self.volume_id = volume_id
+        self.local_id = local_id
+        self.is_big = is_big
+        self.file_size = file_size
+        self.mime_type = mime_type
+        self.file_name = file_name
+        self.date = date
diff --git a/pyrogram/client/methods/chats/get_chat_member.py b/pyrogram/client/methods/chats/get_chat_member.py
index b409ce3c..287f9bf7 100644
--- a/pyrogram/client/methods/chats/get_chat_member.py
+++ b/pyrogram/client/methods/chats/get_chat_member.py
@@ -47,26 +47,30 @@ class GetChatMember(BaseClient):
         Raises:
             RPCError: In case of a Telegram RPC error.
         """
-        chat_id = await self.resolve_peer(chat_id)
-        user_id = await self.resolve_peer(user_id)
+        chat = await self.resolve_peer(chat_id)
+        user = await self.resolve_peer(user_id)
 
-        if isinstance(chat_id, types.InputPeerChat):
+        if isinstance(chat, types.InputPeerChat):
             full_chat = await self.send(
                 functions.messages.GetFullChat(
-                    chat_id=chat_id.chat_id
+                    chat_id=chat.chat_id
                 )
             )
 
             for member in pyrogram.ChatMembers._parse(self, full_chat).chat_members:
-                if member.user.is_self:
-                    return member
+                if isinstance(user, types.InputPeerSelf):
+                    if member.user.is_self:
+                        return member
+                else:
+                    if member.user.id == user.user_id:
+                        return member
             else:
                 raise UserNotParticipant
-        elif isinstance(chat_id, types.InputPeerChannel):
+        elif isinstance(chat, types.InputPeerChannel):
             r = await self.send(
                 functions.channels.GetParticipant(
-                    channel=chat_id,
-                    user_id=user_id
+                    channel=chat,
+                    user_id=user
                 )
             )
 
diff --git a/pyrogram/client/methods/messages/download_media.py b/pyrogram/client/methods/messages/download_media.py
index ba78f580..72d21d3b 100644
--- a/pyrogram/client/methods/messages/download_media.py
+++ b/pyrogram/client/methods/messages/download_media.py
@@ -22,7 +22,7 @@ import struct
 from typing import Union
 
 import pyrogram
-from pyrogram.client.ext import BaseClient, utils
+from pyrogram.client.ext import BaseClient, FileData, utils
 from pyrogram.errors import FileIdInvalid
 
 
@@ -110,7 +110,7 @@ class DownloadMedia(BaseClient):
             mime_type = getattr(media, "mime_type", None)
             date = getattr(media, "date", None)
 
-        data = self.FileData(
+        data = FileData(
             file_name=file_name,
             file_size=file_size,
             mime_type=mime_type,
@@ -118,7 +118,7 @@ class DownloadMedia(BaseClient):
         )
 
         def get_existing_attributes() -> dict:
-            return dict(filter(lambda x: x[1] is not None, data._asdict().items()))
+            return dict(filter(lambda x: x[1] is not None, data.__dict__.items()))
 
         try:
             decoded = utils.decode(file_id_str)
@@ -128,7 +128,7 @@ class DownloadMedia(BaseClient):
                 unpacked = struct.unpack("<iiqqib", decoded)
                 dc_id, peer_id, volume_id, local_id, is_big = unpacked[1:]
 
-                data = self.FileData(
+                data = FileData(
                     **get_existing_attributes(),
                     media_type=media_type,
                     dc_id=dc_id,
@@ -139,25 +139,25 @@ class DownloadMedia(BaseClient):
                 )
             elif media_type in (0, 2, 14):
                 unpacked = struct.unpack("<iiqqc", decoded)
-                dc_id, file_id, access_hash, thumb_size = unpacked[1:]
+                dc_id, document_id, access_hash, thumb_size = unpacked[1:]
 
-                data = self.FileData(
+                data = FileData(
                     **get_existing_attributes(),
                     media_type=media_type,
                     dc_id=dc_id,
-                    file_id=file_id,
+                    document_id=document_id,
                     access_hash=access_hash,
                     thumb_size=thumb_size.decode()
                 )
             elif media_type in (3, 4, 5, 8, 9, 10, 13):
                 unpacked = struct.unpack("<iiqq", decoded)
-                dc_id, file_id, access_hash = unpacked[1:]
+                dc_id, document_id, access_hash = unpacked[1:]
 
-                data = self.FileData(
+                data = FileData(
                     **get_existing_attributes(),
                     media_type=media_type,
                     dc_id=dc_id,
-                    file_id=file_id,
+                    document_id=document_id,
                     access_hash=access_hash
                 )
             else:
diff --git a/pyrogram/client/types/messages_and_media/animation.py b/pyrogram/client/types/messages_and_media/animation.py
index 2a9c9e66..5441a114 100644
--- a/pyrogram/client/types/messages_and_media/animation.py
+++ b/pyrogram/client/types/messages_and_media/animation.py
@@ -72,7 +72,7 @@ class Animation(Object):
         mime_type: str = None,
         file_size: int = None,
         date: int = None,
-        thumbs: List[Thumbnail] = None,
+        thumbs: List[Thumbnail] = None
     ):
         super().__init__(client)
 
diff --git a/pyrogram/client/types/messages_and_media/audio.py b/pyrogram/client/types/messages_and_media/audio.py
index d6324e83..3d9cf8a6 100644
--- a/pyrogram/client/types/messages_and_media/audio.py
+++ b/pyrogram/client/types/messages_and_media/audio.py
@@ -74,7 +74,7 @@ class Audio(Object):
         date: int = None,
         performer: str = None,
         title: str = None,
-        thumbs: List[Thumbnail] = None,
+        thumbs: List[Thumbnail] = None
     ):
         super().__init__(client)
 
diff --git a/pyrogram/client/types/messages_and_media/document.py b/pyrogram/client/types/messages_and_media/document.py
index 023e4204..45994e16 100644
--- a/pyrogram/client/types/messages_and_media/document.py
+++ b/pyrogram/client/types/messages_and_media/document.py
@@ -60,7 +60,7 @@ class Document(Object):
         mime_type: str = None,
         file_size: int = None,
         date: int = None,
-        thumbs: List[Thumbnail] = None,
+        thumbs: List[Thumbnail] = None
     ):
         super().__init__(client)
 
diff --git a/pyrogram/client/types/messages_and_media/stripped_thumbnail.py b/pyrogram/client/types/messages_and_media/stripped_thumbnail.py
index 4dbeb7d1..1c967042 100644
--- a/pyrogram/client/types/messages_and_media/stripped_thumbnail.py
+++ b/pyrogram/client/types/messages_and_media/stripped_thumbnail.py
@@ -35,7 +35,7 @@ class StrippedThumbnail(Object):
         self,
         *,
         client: "pyrogram.BaseClient" = None,
-        data: bytes,
+        data: bytes
     ):
         super().__init__(client)