code: def test_hermite_derivative(self, xp, scp, dtype):
      if xp.dtype(dtype).kind in "u":
          pytest.skip()
      xs = xp.array([0, 0, 0], dtype=dtype)
      ys = xp.array([1, 2, 3], dtype=dtype)
      test_xs = xp.linspace(-5, 5, 5, dtype=dtype)
      P = scp.interpolate.KroghInterpolator(xs, ys)
      return P(test_xs)
  
imports: import io
  import warnings
  import numpy
  import pytest
  import cupy
  from cupy.cuda import runtime
  from cupy import testing
  import cupyx.scipy.interpolate
  from cupyx.scipy.interpolate import CubicHermiteSpline
label_desc: Use image node_id 8 for calling the TestKrogh obj's underlying member method code with example usage: obj.test_hermite_derivative(xp, scp, dtype) and returns: P