Refactor type resolution logic for vector fields to improve Pythonic style

Author: huwaizatahir2

aredis_om/model/model.py

@@ -2162,10 +2162,11 @@ def schema_for_type(
             # a proper type, we can pull the type information from the origin of the first argument.
             if not isinstance(typ, type):
                 type_args = typing_get_args(field_info.annotation)
-                if type_args and hasattr(type_args[0], "__origin__"):
-                    typ = type_args[0].__origin__
-                else:
-                    typ = type_args[0] if type_args else typ
+                typ = (
+                    getattr(type_args[0], "__origin__", type_args[0])
+                    if type_args
+                    else typ
+                )
 
             # TODO: GEO field
             if is_vector and vector_options: