check types fix

Signed-off-by: Sai Shree Pradhan <saishree.pradhan@databricks.com>

Author: saishreeeee

src/databricks/sql/client.py

@@ -270,7 +270,7 @@ def read(self) -> Optional[OAuthToken]:
                 error_message=str(e),
                 host_url=server_hostname,
                 http_path=http_path,
-                port=self.session.port if hasattr(self, "session") else None,
+                port=kwargs.get("_port", 443),
                 user_agent=self.session.useragent_header
                 if hasattr(self, "session")
                 else None,