Lastest fastapi is having issues rendering nested dataclasses

FastAPI is not properly encoding the nexted HealthSummary - child members/keys
aren't included.

Once method's return changed to `object` the JSON is rendered as expected.

Author: michael.yak

pyctuator/impl/fastapi_pyctuator.py

@@ -1,3 +1,4 @@
+import json
 from collections import defaultdict
 from datetime import datetime
 from http import HTTPStatus
@@ -21,6 +22,8 @@
 from pyctuator.metrics.metrics_provider import Metric, MetricNames
 from pyctuator.threads.thread_dump_provider import ThreadDump
 
+from dataclasses import asdict
+
 
 class FastApiLoggerItem(BaseModel):
     configuredLevel: Optional[str]
@@ -74,7 +77,7 @@ def get_info() -> Dict:
             return pyctuator_impl.get_app_info()
 
         @router.get("/health", include_in_schema=include_in_openapi_schema, tags=["pyctuator"])
-        def get_health(response: Response) -> HealthSummary:
+        def get_health(response: Response) -> object:
             health = pyctuator_impl.get_health()
             response.status_code = health.http_status()
             return health