修复类型错误

app/api/v1/endpoints/components/patterns.py

@@ -9,7 +9,7 @@ async def fastapi_get_pattern_schema(network: str) -> dict[str, dict[str, Any]]:
     return get_pattern_schema(network)
 
 @router.post("/addpattern/", response_model=None)
-async def fastapi_add_pattern(network: str, pattern: str, req: Request) -> ChangeSet:
+async def fastapi_add_pattern(network: str, pattern: str, req: Request) -> "ChangeSet":
     props = await req.json()
     ps = {
         "id": pattern,
@@ -17,7 +17,7 @@ async def fastapi_add_pattern(network: str, pattern: str, req: Request) -> Chang
     return add_pattern(network, ChangeSet(ps))
 
 @router.post("/deletepattern/", response_model=None)
-async def fastapi_delete_pattern(network: str, pattern: str) -> ChangeSet:
+async def fastapi_delete_pattern(network: str, pattern: str) -> "ChangeSet":
     ps = {"id": pattern}
     return delete_pattern(network, ChangeSet(ps))
 
@@ -28,7 +28,7 @@ async def fastapi_get_pattern_properties(network: str, pattern: str) -> dict[str
 @router.post("/setpatternproperties/", response_model=None)
 async def fastapi_set_pattern_properties(
     network: str, pattern: str, req: Request
-) -> ChangeSet:
+) -> "ChangeSet":
     props = await req.json()
     ps = {"id": pattern} | props
     return set_pattern(network, ChangeSet(ps))