code: def test_dataframe_cow_slice_setitem():
      with cudf.option_context("copy_on_write", True):
          df = cudf.DataFrame(
              {"a": [10, 11, 12, 13, 14], "b": [20, 30, 40, 50, 60]}
          )
          slice_df = df[1:4]
  
          assert_eq(
              slice_df,
              cudf.DataFrame(
                  {"a": [11, 12, 13], "b": [30, 40, 50]},
                  index=[1, 2, 3],
              ),
          )
  
          slice_df["a"][2] = 1111
  
          assert_eq(
              slice_df,
              cudf.DataFrame(
                  {"a": [11, 1111, 13], "b": [30, 40, 50]},
                  index=[1, 2, 3],
              ),
          )
          assert_eq(
              df,
              cudf.DataFrame(
                  {"a": [10, 11, 12, 13, 14], "b": [20, 30, 40, 50, 60]}
              ),
          )
  
imports: import cupy
  import numpy
  import pandas
  import pytest
  import cudf
  from cudf import Series
  from cudf.testing._utils import NUMERIC_TYPES, OTHER_TYPES, assert_eq
label_desc: Use image node_id 17 for calling a global function with example usage: test_dataframe_cow_slice_setitem() without return types