SQ -> Drop support for Python 3.7

trycast.py

@@ -38,7 +38,7 @@
 )
 from typing import _eval_type as eval_type  # type: ignore[attr-defined]
 from typing import _type_repr as type_repr  # type: ignore[attr-defined]
-from typing import cast, get_args, get_origin, get_type_hints, overload
+from typing import cast, get_args, get_origin, overload
 
 try:
     from types import UnionType  # type: ignore[attr-defined]
@@ -48,6 +48,16 @@ class UnionType(type):  # type: ignore[no-redef]
         ...
 
 
+# get_type_hints
+try:
+    # If typing_extensions available,
+    # understands both typing.* and typing_extensions.* types
+    from typing_extensions import get_type_hints  # type: ignore[attr-defined]
+except ImportError:
+    # If typing_extensions not available
+    from typing import get_type_hints  # type: ignore[misc]  # incompatible import
+
+
 # TypeGuard
 if sys.version_info >= (3, 10):
     from typing import TypeGuard  # Python 3.10+