code: def check_data(data, variables):
      if data is None:
          raise ValueError("Data must be provided by explainer")
  
      return data
  
file_path: DALEX/python/dalex/dalex/predict_explanations/_ceteris_paribus/checks.py
imports: import warnings
  from copy import deepcopy
  import numpy
  import pandas
  from .None import utils
label_desc: Use image node_id 3 for calling a global function with example usage: check_data(data, variables) and returns: data