Fix mypy issue

Author: tibor-reiss

weaviate/collections/cluster/cluster.py

@@ -1,14 +1,11 @@
-from weaviate.connect import ConnectionV4
-
-
-from typing import List, Literal, Optional, Union, overload
+from typing import List, Literal, Optional, Union, cast, overload
 
 from weaviate.cluster.types import Node as NodeREST
 from weaviate.collections.classes.cluster import Node, Shards, _ConvertFromREST, Stats
+from weaviate.connect import ConnectionV4
 from weaviate.exceptions import (
     EmptyResponseError,
 )
-
 from weaviate.util import _capitalize_first_letter, _decode_json_response_dict
 
 
@@ -98,4 +95,4 @@ async def rest_nodes(
         nodes = response_typed.get("nodes")
         if nodes is None or nodes == []:
             raise EmptyResponseError("Nodes status response returned empty")
-        return nodes
+        return cast(List[NodeREST], nodes)