code: def test_scalar_cache():
      s = cudf.Scalar(1)
      s2 = cudf.Scalar(1)
  
      assert s is s2
  
imports: import datetime
  import re
  from decimal import Decimal
  import numpy
  import pandas
  import pyarrow
  import pytest
  import rmm
  import cudf
  from cudf._lib.copying import get_element
  from cudf.testing._utils import ALL_TYPES, DATETIME_TYPES, NUMERIC_TYPES, TIMEDELTA_TYPES
label_desc: Use image node_id 19 for calling a global function with example usage: test_scalar_cache() without return types