fixup: types

Signed-off-by: Simon Schrottner <[email protected]>

Author: aepfli

providers/openfeature-provider-flagd/src/openfeature/contrib/provider/flagd/resolvers/process/connector/grpc_watcher.py

@@ -214,7 +214,7 @@ def _create_request_args(self) -> dict:
 
         return request_args
 
-    def _create_metadata(self) -> typing.Optional[typing.List[typing.Tuple[str, str]]]:
+    def _create_metadata(self) -> typing.Optional[typing.Tuple[typing.Tuple[str, str]]]:
         """Create gRPC metadata headers for the request.
 
         Returns gRPC metadata as a list of tuples containing header key-value pairs.
@@ -224,7 +224,7 @@ def _create_metadata(self) -> typing.Optional[typing.List[typing.Tuple[str, str]
         if self.selector is None:
             return None
 
-        return [("flagd-selector", self.selector)]
+        return (("flagd-selector", self.selector),)
 
     def _fetch_metadata(self) -> typing.Optional[sync_pb2.GetMetadataResponse]:
         if self.config.sync_metadata_disabled:

providers/openfeature-provider-flagd/src/openfeature/contrib/provider/flagd/resolvers/types.py

@@ -4,4 +4,4 @@
 class GrpcMultiCallableArgs(typing.TypedDict, total=False):
     timeout: typing.Optional[float]
     wait_for_ready: typing.Optional[bool]
-    metadata: typing.Optional[typing.Sequence[typing.Tuple[str, str]]]
+    metadata: typing.Optional[typing.Tuple[typing.Tuple[str, str]]]