code: def test_contract_tuple():
      assert contract_tuple((1, 1, 2, 3, 1), 2) == (2, 2, 2, 2)
      assert contract_tuple((1, 1, 2, 5, 1), 2) == (2, 2, 4, 2)
      assert contract_tuple((2, 4), 2) == (2, 4)
      assert contract_tuple((2, 4), 3) == (6,)
  
file_path: dask/dask/array/tests/test_reshape.py
imports: from __future__ import annotations
  import numpy
  import pytest
  import dask.array
  from dask.array.reshape import contract_tuple, expand_tuple, reshape_rechunk
  from dask.array.utils import assert_eq
label_desc: Use image node_id 3 for calling a global function with example usage: test_contract_tuple() without return types