Test patch for literal

Author: nsaccente

sqlmodel/_compat.py

@@ -10,6 +10,7 @@
     Dict,
     ForwardRef,
     Generator,
+    Literal,
     Mapping,
     Optional,
     Set,
@@ -22,6 +23,7 @@
 from pydantic import BaseModel
 from pydantic.fields import FieldInfo
 from typing_extensions import Annotated, get_args, get_origin
+from .sql.sqltypes import AutoString
 
 # Reassign variable to make it reexported for mypy
 PYDANTIC_VERSION = P_VERSION