diff --git a/python/online/fxreader/pr34/commands_typed/pip.py b/python/online/fxreader/pr34/commands_typed/pip.py
index b8e086a..24f4c4e 100644
--- a/python/online/fxreader/pr34/commands_typed/pip.py
+++ b/python/online/fxreader/pr34/commands_typed/pip.py
@@ -11,7 +11,7 @@ import unittest.mock
 import logging
 import typing
 
-from typing_extensions import (cast,)
+from typing_extensions import (cast, Protocol,)
 
 if typing.TYPE_CHECKING:
     import pip._internal.commands.show
@@ -24,6 +24,7 @@ if typing.TYPE_CHECKING:
     import pip._internal.resolution.base
     import pip._internal.resolution.resolvelib.resolver
     import pip._internal.operations.prepare
+    import pip._internal.index.package_finder
 
 from typing import (
     Literal, Optional, Iterable, Any,
@@ -55,6 +56,15 @@ def pip_show(
 
 
 class pip_resolve_t:
+    class build_package_finder_t(Protocol):
+        def __call__(
+            self,
+            options: Any,
+            session: Any,
+            target_python: Any,
+            ignore_requires_python: Any,
+        ) -> 'pip._internal.index.package_finder.PackageFinder': ...
+
     class kwargs_t:
         class mode_t(enum.StrEnum):
             copy_paste = "copy_paste"
@@ -152,17 +162,18 @@ def pip_resolve(
             session = t1.get_default_session(options)
             target_python = pip._internal.cli.cmdoptions.make_target_python(options)
             finder = cast(
+                pip_resolve_t.build_package_finder_t,
                 getattr(
                     t1,
                     '_build_package_finder'
                 )
-            )
-            t1._build_package_finder(
+            )(
                 options=options,
                 session=session,
                 target_python=target_python,
                 ignore_requires_python=options.ignore_requires_python,
             )
+
             build_tracker = t1.enter_context(
                 pip._internal.operations.build.build_tracker.get_build_tracker()
             )
diff --git a/python/pyproject.toml b/python/pyproject.toml
index 378767e..f6e1df0 100644
--- a/python/pyproject.toml
+++ b/python/pyproject.toml
@@ -205,7 +205,8 @@ reportUnnecessaryIsInstance = "warning"
 reportUnusedClass = "error"
 #reportUnusedImport = "error"
 reportUnusedImport = "none"
-reportUnusedFunction = "error"
+# reportUnusedFunction = "error"
+reportUnusedFunction = "warning"
 #reportUnusedVariable = "error"
 reportUnusedVariable = "warning"
 reportUntypedBaseClass = "error"