pg.from_json to support auto_import flag.

This allows automatic import of classes when they are not registered.
This CL also replaces `force_dict` with `auto_dict`.

PiperOrigin-RevId: 676880474

langfun/core/eval/base_test.py

@@ -268,7 +268,7 @@ def test_run(self):
         s.root_dir, base.Evaluation.SUMMARY_HTML.replace('.html', '.json')
     )
     self.assertTrue(os.path.exists(summary_json))
-    summary = pg.load(summary_json, force_dict=True)
+    summary = pg.load(summary_json, auto_dict=True)
     self.assertIn('Evaluation', summary)
     self.assertEqual(len(summary['Evaluation']), 1)
     self.assertIsNotNone(summary['Evaluation'][0].experiment)

langfun/core/eval/matching.py

@@ -182,9 +182,6 @@ def save(
               for input, output, _ in self.matches
           ],
           os.path.join(self.dir, Matching.MATCHES_JSON),
-          # We force the input and output to be dict so it does not depend on
-          # the downstream to serialize.
-          force_dict=True,
       )
 
       # Save mismatches.
@@ -198,9 +195,6 @@ def save(
               for input, output, _ in self.mismatches
           ],
           os.path.join(self.dir, Matching.MISMATCHES_JSON),
-          # We force the input and output to be dict so it does not depend on
-          # the downstream to serialize.
-          force_dict=True,
       )
 
     if report:

langfun/core/eval/scoring.py

@@ -137,9 +137,6 @@ def save(
               for input, output, score, _ in self.scored
           ],
           os.path.join(self.dir, Scoring.SCORED_JSON),
-          # We force the input and output to be dict so it does not depend on
-          # the downstream to serialize.
-          force_dict=True,
       )
 
     if report: