fix yapf error

Author: derrickaw

sdks/python/apache_beam/yaml/yaml_provider.py

@@ -1548,8 +1548,9 @@ def create_transform(
     """Creates a PTransform instance for the given transform type and arguments.
     """
     mappings = self._mappings[typ]
-    # NOTE: If the `key` is not found in the mappings (e.g. standard_io.py), the
-    # `key` is passed down as is to the underlying transform.
+    # NOTE: If the `key` is not found in the mappings
+    # (e.g. standard_io.yaml), the `key` is passed down
+    # as is to the underlying transform.
     remapped_args = {
         mappings.get(key, key): value
         for key, value in args.items()