code: def test_constant():
      x = cupy.arange(64).reshape((8, 8))
      d = da.from_array(x, chunks=(4, 4), asarray=False)
  
      e = da.overlap.constant(d, axis=0, depth=2, value=10)
      assert e.shape[0] == d.shape[0] + 4
      assert e.shape[1] == d.shape[1]
  
      assert_eq(
          e[1, :], np.ones(8, dtype=x.dtype) * 10, check_type=False
      )
      assert_eq(
          e[-1, :], np.ones(8, dtype=x.dtype) * 10, check_type=False
      )
  
file_path: dask/dask/array/tests/test_cupy_overlap.py
imports: from __future__ import annotations
  import numpy
  import pytest
  from packaging.version import parse
  import dask.array
  from dask.array.utils import assert_eq, same_keys
label_desc: Use image node_id 6 for calling a global function with example usage: test_constant() without return types