code: def test_human_readable_repr(self):
      field = MetadataField({"a": 1, "b": [0]})
      assert field.human_readable_repr() == {"a": 1, "b": [0]}
  
file_path: allennlp/tests/data/fields/metadata_field_test.py
imports: import pytest
  from allennlp.common.testing.test_case import AllenNlpTestCase
  from allennlp.data.fields import MetadataField
label_desc: Use image node_id 3 for calling the TestMetadataField obj's underlying member method code with example usage: obj.test_human_readable_repr() without return types