Include link to SavedModel CLI in the Py loader when tag-set is not f…

…ound.

PiperOrigin-RevId: 159586182

tensorflow/python/saved_model/loader_impl.py

@@ -206,8 +206,11 @@ def load(sess, tags, export_dir, **saver_kwargs):
         break
 
     if not found_match:
-      raise RuntimeError("MetaGraphDef associated with tags " + str(tags).strip(
-          "[]") + " could not be found in SavedModel")
+      raise RuntimeError(
+          "MetaGraphDef associated with tags " + str(tags).strip("[]") +
+          " could not be found in SavedModel. To inspect available tag-sets in"
+          " the SavedModel, please use the SavedModel CLI: `saved_model_cli`"
+      )
 
     # Build a saver by importing the meta graph def to load.
     saver = tf_saver.import_meta_graph(meta_graph_def_to_load, **saver_kwargs)