code: def test_unique_dict_in_list():
      items = []
      assert unique_dict_in_list(items) == []
      items = [
          dict(
              a=1,
              b="a",
              c=None,
              d=[1, 2, 3],
              e={"a": [1, 2, 3], "b": "s"},
          ),
          dict(
              a=1,
              b="a",
              c=None,
              d=[1, 2, 3],
              e={"a": [1, 2, 3], "b": "d"},
          ),
          dict(
              a=1,
              b="a",
              c=None,
              d=[1, 2, 3],
              e={"a": [1, 2, 3], "b": "s"},
          ),
      ]
      result = unique_dict_in_list(items)
      assert result == [
          dict(
              a=1,
              b="a",
              c=None,
              d=[1, 2, 3],
              e={"a": [1, 2, 3], "b": "s"},
          ),
          dict(
              a=1,
              b="a",
              c=None,
              d=[1, 2, 3],
              e={"a": [1, 2, 3], "b": "d"},
          ),
      ]
  
imports: import warnings
  from dataclasses import dataclass
  from typing import List
  import numpy
  import pandas
  import pytest
  import scipy
  from greykite.common import constants
  from greykite.common.evaluation import ElementwiseEvaluationMetricEnum
  from greykite.common.python_utils import apply_func_to_columns
  from greykite.common.python_utils import assert_equal
  from greykite.common.python_utils import dictionaries_values_to_lists
  from greykite.common.python_utils import dictionary_values_to_lists
  from greykite.common.python_utils import flatten_list
  from greykite.common.python_utils import get_integer
  from greykite.common.python_utils import get_pattern_cols
  from greykite.common.python_utils import group_strs_with_regex_patterns
  from greykite.common.python_utils import ignore_warnings
  from greykite.common.python_utils import mutable_field
  from greykite.common.python_utils import reorder_columns
  from greykite.common.python_utils import split_offset_str
  from greykite.common.python_utils import unique_dict_in_list
  from greykite.common.python_utils import unique_elements_in_list
  from greykite.common.python_utils import unique_in_list
  from greykite.common.python_utils import update_dictionaries
  from greykite.common.python_utils import update_dictionary
label_desc: Use image node_id 4 for calling a global function with example usage: test_unique_dict_in_list() without return types