code: def test_periods_between(start, end, count):
      assert count == periods_between(start, end)
  
file_path: gluonts/test/dataset/test_split.py
imports: import numpy
  import pandas
  import pytest
  from gluonts.dataset.field_names import FieldName
  from gluonts.dataset.split import OffsetSplitter, periods_between, split, slice_data_entry
label_desc: Use image node_id 2 for calling a global function with example usage: test_periods_between(start, end, count) without return types