chore: add PEP 0810 comment above __lazy_modules__

Author: hebaalazzeh

packages/google-auth/google/auth/transport/grpc.py

@@ -33,6 +33,12 @@
 
 _LOGGER = logging.getLogger(__name__)
 
+# PEP 0810: Explicit Lazy Imports
+# Python 3.15+ natively intercepts and defers these imports.
+# Developers can disable this behavior and force eager imports.
+# For more information, see:
+# https://docs.python.org/3.15/library/sys.html#sys.set_lazy_imports_filter
+# Older Python versions safely ignore this variable.
 __lazy_modules__: Set[str] = {"grpc"}
 
 

packages/google-auth/google/auth/transport/requests.py

@@ -42,6 +42,12 @@
 import google.auth.transport._mtls_helper
 from google.oauth2 import service_account
 
+# PEP 0810: Explicit Lazy Imports
+# Python 3.15+ natively intercepts and defers these imports.
+# Developers can disable this behavior and force eager imports.
+# For more information, see:
+# https://docs.python.org/3.15/library/sys.html#sys.set_lazy_imports_filter
+# Older Python versions safely ignore this variable.
 __lazy_modules__: Set[str] = {"requests", "requests.adapters", "requests.exceptions"}
 
 _LOGGER = logging.getLogger(__name__)

packages/google-auth/google/auth/transport/urllib3.py

@@ -58,6 +58,12 @@
 from google.auth.transport import _mtls_helper
 from google.oauth2 import service_account
 
+# PEP 0810: Explicit Lazy Imports
+# Python 3.15+ natively intercepts and defers these imports.
+# Developers can disable this behavior and force eager imports.
+# For more information, see:
+# https://docs.python.org/3.15/library/sys.html#sys.set_lazy_imports_filter
+# Older Python versions safely ignore this variable.
 __lazy_modules__: Set[str] = {
     "urllib3",
     "urllib3.exceptions",