diff --git a/client/commands/v2/pysa_server.py b/client/commands/v2/pysa_server.py
index 3921c559e79..c22e285fc45 100644
--- a/client/commands/v2/pysa_server.py
+++ b/client/commands/v2/pysa_server.py
@@ -96,7 +96,7 @@ def invalid_models_to_diagnostics(
             )
         return result
 
-    async def update_errors(self, document_path) -> None:
+    async def update_errors(self, document_path: Path) -> None:
         await _publish_diagnostics(self.output_channel, document_path, [])
         pyre_connection = api_connection.PyreConnection(
             Path(self.pyre_arguments.global_root)
@@ -136,7 +136,9 @@ async def log_and_show_message_to_client(
             LOG.debug(message)
         await self.show_message_to_client(message, level)
 
-    async def show_model_errors_to_client(self, diagnostics) -> None:
+    async def show_model_errors_to_client(
+        self, diagnostics: Dict[Path, List[lsp.Diagnostic]]
+    ) -> None:
         for path, diagnostic in diagnostics.items():
             await _publish_diagnostics(self.output_channel, path, [])
             if diagnostic is not None: