docstr: Test that `DatasetDict.copy` can copy contents to a built-in dictionary.
docstr_tok: ["Test","that","`","DatasetDict.copy","`","can","copy","contents","to","a","built-in","dictionary","."]
code: def test_copy(self, value):
      """Test that `DatasetDict.copy` can copy contents to a built-in dictionary."""
      dset_dict = DatasetDict(value)
      builtin_dict = dset_dict.copy()
  
      assert isinstance(builtin_dict, dict)
      assert builtin_dict == value
  
      assert builtin_dict.keys() == value.keys()
      assert len(builtin_dict) == len(value)
      assert repr(builtin_dict) == repr(value)
  
file_path: pennylane/tests/data/attributes/test_dict.py
imports: import pytest
  from pennylane.data.attributes import DatasetDict
label_desc: Use image node_id 6 for calling the TestDatasetDict obj's underlying member method code with example usage: obj.test_copy(value) without return types