diff --git a/src/python/grpcio_health_checking/grpc_health/v1/_async.py b/src/python/grpcio_health_checking/grpc_health/v1/_async.py
index fd2e7be3d9d..acf8d5700cb 100644
--- a/src/python/grpcio_health_checking/grpc_health/v1/_async.py
+++ b/src/python/grpcio_health_checking/grpc_health/v1/_async.py
@@ -13,12 +13,10 @@
 # limitations under the License.
 """Reference implementation for health checking in gRPC Python."""
 
-import logging
 import asyncio
 import collections
 
 import grpc
-from grpc.experimental import aio
 
 from grpc_health.v1 import health_pb2 as _health_pb2
 from grpc_health.v1 import health_pb2_grpc as _health_pb2_grpc
@@ -28,14 +26,12 @@ class AsyncHealthServicer(_health_pb2_grpc.HealthServicer):
     """An AsyncIO implementation of health checking servicer."""
 
     def __init__(self):
-        self._lock = asyncio.Lock()
         self._server_status = dict()
         self._server_watchers = collections.defaultdict(asyncio.Condition)
         self._gracefully_shutting_down = False
 
     async def Check(self, request: _health_pb2.HealthCheckRequest, context):
         status = self._server_status.get(request.service)
-        logging.debug('Status %s, %s', request.service, status)
 
         if status is None:
             await context.abort(grpc.StatusCode.NOT_FOUND)
diff --git a/src/python/grpcio_health_checking/grpc_health/v1/health.py b/src/python/grpcio_health_checking/grpc_health/v1/health.py
index bc97368acf5..99d9c0406bf 100644
--- a/src/python/grpcio_health_checking/grpc_health/v1/health.py
+++ b/src/python/grpcio_health_checking/grpc_health/v1/health.py
@@ -22,7 +22,8 @@ from grpc_health.v1 import health_pb2 as _health_pb2
 from grpc_health.v1 import health_pb2_grpc as _health_pb2_grpc
 
 if sys.version_info[0] >= 3 and sys.version_info[1] >= 6:
-    from ._async import AsyncHealthServicer
+    # Exposes AsyncHealthServicer as public API.
+    from ._async import AsyncHealthServicer  # pylint: disable=unused-import
 
 SERVICE_NAME = _health_pb2.DESCRIPTOR.services_by_name['Health'].full_name