Remove underscore from module names

telethon/extensions/__init__.py

@@ -3,5 +3,5 @@ Several extensions Python is missing, such as a proper class to handle a TCP
 communication with support for cancelling the operation, and an utility class
 to read arbitrary binary data in a more comfortable way, with int/strings/etc.
 """
-from .binary_reader import BinaryReader
-from .tcp_client import TcpClient
+from .binaryreader import BinaryReader
+from .tcpclient import TcpClient

telethon/extensions/binaryreader.py

@@ -7,7 +7,7 @@ from io import BufferedReader, BytesIO
 from struct import unpack
 
 from ..errors import TypeNotFoundError
-from ..tl.all_tlobjects import tlobjects
+from ..tl.alltlobjects import tlobjects
 from ..tl.core import core_objects