code: def test_format_kwarg_dictionaries_no_user_kwargs():
      formatted_kwargs = format_kwarg_dictionaries(
          default_kwargs=d_default
      )
      assert formatted_kwargs == d_default
  
imports: import os
  import sys
  import numpy
  from mlxtend.utils import assert_raises, check_Xy, format_kwarg_dictionaries
label_desc: Use image node_id 15 for calling a global function with example usage: test_format_kwarg_dictionaries_no_user_kwargs() without return types