diff --git a/odoo/tools/zeep/__init__.py b/odoo/tools/zeep/__init__.py
index cb3a74b1249..f0a747a0734 100644
--- a/odoo/tools/zeep/__init__.py
+++ b/odoo/tools/zeep/__init__.py
@@ -1,7 +1,8 @@
 from zeep.transports import Transport
 from zeep.plugins import Plugin
 from zeep.settings import Settings
-from zeep.ns import *
 
 from . import exceptions
+from . import ns
+from . import wsdl
 from .client import Client
diff --git a/odoo/tools/zeep/client.py b/odoo/tools/zeep/client.py
index b335aa23b9d..900029e0e62 100644
--- a/odoo/tools/zeep/client.py
+++ b/odoo/tools/zeep/client.py
@@ -2,11 +2,14 @@ import zeep
 
 from decimal import Decimal
 from datetime import date, datetime, timedelta
+from requests import Response
 from types import SimpleNamespace, FunctionType
 
 
 TIMEOUT = 30
-SERIALIZABLE_TYPES = (type(None), bool, int, float, str, bytes, tuple, list, dict, Decimal, date, datetime, timedelta)
+SERIALIZABLE_TYPES = (
+    type(None), bool, int, float, str, bytes, tuple, list, dict, Decimal, date, datetime, timedelta, Response
+)
 
 
 class Client:
@@ -17,19 +20,16 @@ class Client:
     * serializing the returned values of its methods.
     """
     def __init__(self, *args, **kwargs):
-        load_timeout = kwargs.pop('timeout', None)
-        operation_timeout = kwargs.pop('operation_timeout', None)
-        session = kwargs.pop('session', None)
+        transport = kwargs.setdefault('transport', zeep.Transport())
+        # The timeout for loading wsdl and xsd documents.
+        transport.load_timeout = kwargs.pop('timeout', None) or transport.load_timeout or TIMEOUT
+        # The timeout for operations (POST/GET)
+        transport.operation_timeout = kwargs.pop('operation_timeout', None) or transport.operation_timeout or TIMEOUT
+        # The `requests.session` used for HTTP requests
+        transport.session = kwargs.pop('session', None) or transport.session
 
         client = zeep.Client(*args, **kwargs)
 
-        # The timeout for loading wsdl and xsd documents.
-        client.transport.load_timeout = load_timeout or client.transport.load_timeout or TIMEOUT
-        # The timeout for operations (POST/GET)
-        client.transport.operation_timeout = operation_timeout or client.transport.operation_timeout or TIMEOUT
-        if session:
-            client.transport.session = session
-
         self.__obj = client
         self.__service = None
 
diff --git a/odoo/tools/zeep/ns.py b/odoo/tools/zeep/ns.py
new file mode 100644
index 00000000000..f1dc68cce36
--- /dev/null
+++ b/odoo/tools/zeep/ns.py
@@ -0,0 +1 @@
+from zeep.ns import *
diff --git a/odoo/tools/zeep/wsdl/__init__.py b/odoo/tools/zeep/wsdl/__init__.py
new file mode 100644
index 00000000000..eb018c3ff09
--- /dev/null
+++ b/odoo/tools/zeep/wsdl/__init__.py
@@ -0,0 +1 @@
+from . import utils
diff --git a/odoo/tools/zeep/wsdl/utils.py b/odoo/tools/zeep/wsdl/utils.py
index e9b8cc3c653..18ab45c4f00 100644
--- a/odoo/tools/zeep/wsdl/utils.py
+++ b/odoo/tools/zeep/wsdl/utils.py
@@ -1 +1 @@
-from zeep.wsdl.utils import etree_to_string
+from zeep.wsdl.utils import etree_to_string, get_or_create_header
diff --git a/odoo/tools/zeep/wsse/username/__init__.py b/odoo/tools/zeep/wsse/username/__init__.py
index 8b5481e46a5..7cd675c5064 100644
--- a/odoo/tools/zeep/wsse/username/__init__.py
+++ b/odoo/tools/zeep/wsse/username/__init__.py
@@ -1 +1 @@
-from zeep.wsse.username import UsernameToken
+from zeep.wsse.username import *