code: def test_series_func_wrapper_with_kwargs(dummy_data):
      def max_diff(x: pd.Series, mult=1):
          return (
              x.index.to_series().diff().dt.total_seconds().max() * mult
          )
  
      func1 = FuncWrapper(max_diff, input_type=pd.Series)
      func2 = FuncWrapper(
          max_diff,
          input_type=pd.Series,
          mult=3,
          output_names="MAX_DIFF",
      )
  
      assert func1.output_names == ["max_diff"]
      assert func2.output_names == ["MAX_DIFF"]
      assert func1(dummy_data["EDA"]) == 0.25
      assert func2(dummy_data["EDA"]) == 0.25 * 3
  
file_path: tsflex/tests/test_features_func_wrapper.py
imports: import functools
  from typing import Tuple
  import numpy
  import pandas
  import pytest
  from tsflex.features import FuncWrapper
  from .utils import dummy_data
label_desc: Use image node_id 6 for calling a global function with example usage: test_series_func_wrapper_with_kwargs(dummy_data) and returns: unknown