diff --git a/telethon/crypto/auth_key.py b/telethon/crypto/auth_key.py
index 17a7f8ca..7dce3fa3 100644
--- a/telethon/crypto/auth_key.py
+++ b/telethon/crypto/auth_key.py
@@ -1,7 +1,7 @@
 import struct
 from hashlib import sha1
 
-from .. import helpers as utils
+from ..helpers import calc_msg_key
 from ..extensions import BinaryReader
 
 
@@ -20,4 +20,4 @@ class AuthKey:
         """
         new_nonce = new_nonce.to_bytes(32, 'little', signed=True)
         data = new_nonce + struct.pack('<BQ', number, self.aux_hash)
-        return utils.calc_msg_key(data)
+        return calc_msg_key(data)
diff --git a/telethon/network/authenticator.py b/telethon/network/authenticator.py
index 1accf493..f4f30fa9 100644
--- a/telethon/network/authenticator.py
+++ b/telethon/network/authenticator.py
@@ -6,7 +6,7 @@ from ..tl.types import (
     ResPQ, PQInnerData, ServerDHParamsFail, ServerDHParamsOk,
     ServerDHInnerData, ClientDHInnerData, DhGenOk, DhGenRetry, DhGenFail
 )
-from .. import helpers as utils
+from ..helpers import generate_key_data_from_nonce
 from ..crypto import AES, AuthKey, Factorization
 from ..crypto import rsa
 from ..errors import SecurityError
@@ -110,7 +110,7 @@ def _do_authentication(connection):
         raise SecurityError('Invalid server nonce from server')
 
     # Step 3 sending: Complete DH Exchange
-    key, iv = utils.generate_key_data_from_nonce(
+    key, iv = generate_key_data_from_nonce(
         res_pq.server_nonce, new_nonce
     )
     plain_text_answer = AES.decrypt_ige(
diff --git a/telethon/telegram_bare_client.py b/telethon/telegram_bare_client.py
index 6e7029c8..6b2f279b 100644
--- a/telethon/telegram_bare_client.py
+++ b/telethon/telegram_bare_client.py
@@ -8,7 +8,8 @@ from io import BytesIO
 from threading import Lock
 from time import sleep
 
-from . import helpers as utils
+from .helpers import generate_random_long, ensure_parent_dir_exists
+
 from .crypto import rsa, CdnDecrypter
 from .errors import (
     RPCError, BrokenAuthKeyError, ServerError,
@@ -611,7 +612,7 @@ class TelegramBareClient:
         is_large = file_size > 10 * 1024 * 1024
         part_count = (file_size + part_size - 1) // part_size
 
-        file_id = utils.generate_random_long()
+        file_id = generate_random_long()
         hash_md5 = md5()
 
         stream = open(file, 'rb') if isinstance(file, str) else BytesIO(file)
@@ -689,7 +690,7 @@ class TelegramBareClient:
 
         if isinstance(file, str):
             # Ensure that we'll be able to download the media
-            utils.ensure_parent_dir_exists(file)
+            ensure_parent_dir_exists(file)
             f = open(file, 'wb')
         else:
             f = file
diff --git a/telethon_generator/tl_generator.py b/telethon_generator/tl_generator.py
index 8fc6bb2d..4838087c 100644
--- a/telethon_generator/tl_generator.py
+++ b/telethon_generator/tl_generator.py
@@ -6,6 +6,7 @@ from zlib import crc32
 from collections import defaultdict
 
 from .parser import SourceBuilder, TLParser, TLObject
+
 AUTO_GEN_NOTICE = \
     '"""File generated by TLObjects\' generator. All changes will be ERASED"""'
 
@@ -117,8 +118,18 @@ class TLGenerator:
     def _write_init_py(out_dir, depth, namespace_tlobjects, type_constructors):
         # namespace_tlobjects: {'namespace', [TLObject]}
         os.makedirs(out_dir, exist_ok=True)
+
+        # Generate __init__.py with  relative imports to the namespaces
+        with open(os.path.join(out_dir, '__init__.py'), 'w', encoding='utf-8') as f, \
+                SourceBuilder(f) as builder:
+            builder.writeln(AUTO_GEN_NOTICE)
+            builder.writeln('from . import {}'.format(', '.join(
+                x for x in namespace_tlobjects.keys() if x
+            )))
+            builder.writeln('from .base import *')
+
         for ns, tlobjects in namespace_tlobjects.items():
-            file = os.path.join(out_dir, ns + '.py' if ns else '__init__.py')
+            file = os.path.join(out_dir, ns + '.py' if ns else 'base.py')
             with open(file, 'w', encoding='utf-8') as f, \
                     SourceBuilder(f) as builder:
                 builder.writeln(AUTO_GEN_NOTICE)
@@ -129,16 +140,12 @@ class TLGenerator:
                 builder.writeln(
                     'from {}.tl.tlobject import TLObject'.format('.' * depth)
                 )
-                builder.writeln(
-                        'from {}.tl import types'.format('.' * depth)
-                )
 
-                # Add the relative imports to the namespaces,
-                # unless we already are in a namespace.
-                if not ns:
-                    builder.writeln('from . import {}'.format(', '.join(
-                        x for x in namespace_tlobjects.keys() if x
-                    )))
+                # No need to import base in base.py
+                if ns:
+                    builder.writeln(
+                        'from . import base'
+                    )
 
                 # Import 'get_input_*' utils
                 # TODO Support them on types too
@@ -343,7 +350,7 @@ class TLGenerator:
         builder.writeln('def from_reader(reader):')
         for arg in tlobject.args:
             TLGenerator.write_read_code(
-                builder, arg, tlobject.args, name='_' + arg.name
+                builder, arg, tlobject, name='_' + arg.name
             )
 
         builder.writeln('return {}({})'.format(
@@ -550,15 +557,14 @@ class TLGenerator:
         return True  # Something was written
 
     @staticmethod
-    def write_read_code(builder, arg, args, name):
+    def write_read_code(builder, arg, tlobject, name):
         """
         Writes the read code for the given argument, setting the
         arg.name variable to its read value.
 
         :param builder: The source code builder
         :param arg: The argument to write
-        :param args: All the other arguments in TLObject same on_send.
-                     This is required to determine the flags value
+        :param tlobject: The TLObject for which from_reader() method is written
         :param name: The name of the argument. Defaults to "self.argname"
                      This argument is an option because it's required when
                      writing Vectors<>
@@ -595,7 +601,7 @@ class TLGenerator:
             builder.writeln('for _ in range(reader.read_int()):')
             # Temporary disable .is_vector, not to enter this if again
             arg.is_vector = False
-            TLGenerator.write_read_code(builder, arg, args, name='_x')
+            TLGenerator.write_read_code(builder, arg, tlobject, name='_x')
             builder.writeln('{}.append(_x)'.format(name))
             arg.is_vector = True
 
@@ -644,8 +650,8 @@ class TLGenerator:
             if not arg.skip_constructor_id:
                 builder.writeln('{} = reader.tgread_object()'.format(name))
             else:
-                builder.writeln('{} = types.{}.from_reader(reader)'.format(
-                        name, TLObject.class_name_for(arg.type)))
+                builder.writeln('{} = {}{}.from_reader(reader)'.format(
+                    name, 'base.' if tlobject.namespace else '', TLObject.class_name_for(arg.type)))
 
         # End vector and flag blocks if required (if we opened them before)
         if arg.is_vector: