code: def test_fill_with_cupy_scalar_ndarray(self, xp, dtype1, dtype2):
      a = testing.shaped_arange((2, 3, 4), xp, dtype1)
      b = xp.ones((), dtype=dtype2)
      a.fill(b)
      return a
  
imports: import numpy
  import pytest
  import cupy
  from cupy import testing
  from cupy import _util
label_desc: Use image node_id 3 for calling the TestArrayFill obj's underlying member method code with example usage: obj.test_fill_with_cupy_scalar_ndarray(xp, dtype1, dtype2) and returns: a