code: def _is_empty_column_selection(column):
      """Check if column selection is empty.
  
      Both an empty list or all-False boolean array are considered empty.
      """
      if hasattr(column, "dtype") and np.issubdtype(
          column.dtype, np.bool_
      ):
          return not column.any()
      elif hasattr(column, "__len__"):
          return len(column) == 0
      else:
          return False
  
imports: from itertools import chain
  import numpy
  import pandas
  from sklearn.preprocessing import LabelEncoder
  from sktime.base import _HeterogenousMetaEstimator
  from sktime.classification.base import BaseClassifier
label_desc: Use image node_id 4 for calling a global function with example usage: _is_empty_column_selection(column) and returns: unknown, unknown, False