code: def test_minimum_points_and_deriv(self, xp, scp):
      # interpolation of f(x) = x**3 between 0 and 1. f'(x) = 3 * xx**2 and
      # f'(0) = 0, f'(1) = 3.
      k = 3
      x = [0.0, 1.0]
      y = [0.0, 1.0]
      b = scp.interpolate.make_interp_spline(
          x, y, k, bc_type=([(1, 0.0)], [(1, 3.0)])
      )
      xx = xp.linspace(0.0, 1.0)
      return b(xx)
  
imports: import pytest
  import cupy
  from cupy import testing
  from cupy.cuda import runtime
  import numpy
  import cupyx.scipy.interpolate
label_desc: Use image node_id 19 for calling the TestInterp obj's underlying member method code with example usage: obj.test_minimum_points_and_deriv(xp, scp) and returns: b