diff --git a/scrapling/engines/_browsers/_base.py b/scrapling/engines/_browsers/_base.py
index 15371f7..fa95419 100644
--- a/scrapling/engines/_browsers/_base.py
+++ b/scrapling/engines/_browsers/_base.py
@@ -28,6 +28,7 @@ from scrapling.engines.toolbelt.navigation import (
 )
 from scrapling.core._types import (
     Any,
+    Awaitable,
     Dict,
     List,
     Set,
@@ -152,7 +153,7 @@ class SyncSession:
         response_container: List,
         xhr_pattern: Optional[str] = None,
         xhr_container: Optional[List] = None,
-    ) -> Callable:
+    ) -> Callable[[SyncPlaywrightResponse], None]:
         """Create a response handler that captures the final navigation response and optionally XHR/fetch responses.
 
         :param page_info: The PageInfo object containing the page
@@ -162,7 +163,7 @@ class SyncSession:
         :return: A callback function for page.on("response", ...)
         """
 
-        def handle_response(finished_response: SyncPlaywrightResponse):
+        def handle_response(finished_response: SyncPlaywrightResponse) -> None:
             if (
                 finished_response.request.resource_type == "document"
                 and finished_response.request.is_navigation_request()
@@ -337,7 +338,7 @@ class AsyncSession:
         response_container: List,
         xhr_pattern: Optional[str] = None,
         xhr_container: Optional[List] = None,
-    ) -> Callable:
+    ) -> Callable[[AsyncPlaywrightResponse], Awaitable[None]]:
         """Create an async response handler that captures the final navigation response and optionally XHR/fetch responses.
 
         :param page_info: The PageInfo object containing the page
@@ -347,7 +348,7 @@ class AsyncSession:
         :return: A callback function for page.on("response", ...)
         """
 
-        async def handle_response(finished_response: AsyncPlaywrightResponse):
+        async def handle_response(finished_response: AsyncPlaywrightResponse) -> None:
             if (
                 finished_response.request.resource_type == "document"
                 and finished_response.request.is_navigation_request()
diff --git a/scrapling/engines/_browsers/_controllers.py b/scrapling/engines/_browsers/_controllers.py
index f788819..ce4b643 100644
--- a/scrapling/engines/_browsers/_controllers.py
+++ b/scrapling/engines/_browsers/_controllers.py
@@ -11,7 +11,7 @@ from playwright.async_api import (
 )
 
 from scrapling.core.utils import log
-from scrapling.core._types import Optional, ProxyType, Unpack
+from scrapling.core._types import Optional, List, ProxyType, Unpack
 from scrapling.engines.toolbelt.proxy_rotation import is_proxy_error
 from scrapling.engines.toolbelt.convertor import Response, ResponseFactory
 from scrapling.engines._browsers._types import PlaywrightSession, PlaywrightFetchParams
@@ -139,7 +139,8 @@ class DynamicSession(SyncSession, DynamicSessionMixin):
             with self._page_generator(
                 params.timeout, params.extra_headers, params.disable_resources, proxy, params.blocked_domains
             ) as page_info:
-                final_response, xhr_captured = [None], []
+                final_response: List = [None]
+                xhr_captured: List = []
                 page = page_info.page
                 page.on(
                     "response",
@@ -319,7 +320,8 @@ class AsyncDynamicSession(AsyncSession, DynamicSessionMixin):
             async with self._page_generator(
                 params.timeout, params.extra_headers, params.disable_resources, proxy, params.blocked_domains
             ) as page_info:
-                final_response, xhr_captured = [None], []
+                final_response: List = [None]
+                xhr_captured: List = []
                 page = page_info.page
                 page.on(
                     "response",
diff --git a/scrapling/engines/_browsers/_stealth.py b/scrapling/engines/_browsers/_stealth.py
index ef3a445..f06c62e 100644
--- a/scrapling/engines/_browsers/_stealth.py
+++ b/scrapling/engines/_browsers/_stealth.py
@@ -9,7 +9,7 @@ from patchright.sync_api import sync_playwright
 from patchright.async_api import async_playwright
 
 from scrapling.core.utils import log
-from scrapling.core._types import Any, Optional, ProxyType, Unpack
+from scrapling.core._types import Any, List, Optional, ProxyType, Unpack
 from scrapling.engines.toolbelt.proxy_rotation import is_proxy_error
 from scrapling.engines.toolbelt.convertor import Response, ResponseFactory
 from scrapling.engines._browsers._types import StealthSession, StealthFetchParams
@@ -222,7 +222,8 @@ class StealthySession(SyncSession, StealthySessionMixin):
             with self._page_generator(
                 params.timeout, params.extra_headers, params.disable_resources, proxy, params.blocked_domains
             ) as page_info:
-                final_response, xhr_captured = [None], []
+                final_response: List = [None]
+                xhr_captured: List = []
                 page = page_info.page
                 page.on(
                     "response",
@@ -489,7 +490,8 @@ class AsyncStealthySession(AsyncSession, StealthySessionMixin):
             async with self._page_generator(
                 params.timeout, params.extra_headers, params.disable_resources, proxy, params.blocked_domains
             ) as page_info:
-                final_response, xhr_captured = [None], []
+                final_response: List = [None]
+                xhr_captured: List = []
                 page = page_info.page
                 page.on(
                     "response",