code: def test_estimator_checks(test_fn):
      adder = RandomAdder()
      test_fn(RandomAdder.__name__, adder)
  
file_path: scikit-lego/tests/test_preprocessing/test_randomadder.py
imports: import numpy
  import pytest
  from sklearn.model_selection import train_test_split
  from sklego.common import flatten
  from sklego.preprocessing import RandomAdder
  from tests.conftest import general_checks, nonmeta_checks, select_tests, transformer_checks
label_desc: Use image node_id 1 for calling a global function with example usage: test_estimator_checks(test_fn) without return types