Gave more power to the TelegramClients and bug fixes

Fixed uploads for large files on TcpClient
Added more RPCError's for handling invalid phone code
Added more media handlers: now you're also able to
  both send and download documents!
The InteractiveTelegramClient now supports working
  with media aswell

utils/helpers.py

@@ -1,4 +1,5 @@
 import os
+import shutil
 from utils import BinaryWriter
 import hashlib
 
@@ -30,6 +31,14 @@ def load_settings(path='api/settings'):
 
     return settings
 
+
+def ensure_parent_dir_exists(file_path):
+    """Ensures that the parent directory exists"""
+    parent = os.path.dirname(file_path)
+    if parent:
+        os.makedirs(parent, exist_ok=True)
+
+
 # endregion
 
 # region Cryptographic related utils