code: def count_gt100(x):
      """Count how many observations lie above threshold 100."""
      return np.sum((x > 100)[::-1])
  
file_path: sktime/sktime/transformations/series/tests/test_window_summarizer.py
imports: import numpy
  import pandas
  import pytest
  from sktime.datasets import load_airline, load_longley
  from sktime.datatypes import get_examples
  from sktime.split import temporal_train_test_split
  from sktime.tests.test_switch import run_test_for_class
  from sktime.transformations.series.summarize import WindowSummarizer
label_desc: Use image node_id 2 for calling a global function with example usage: count_gt100(x) and returns: np