code: def test_int_inputs(self):
      # Check input args are cast correctly to floats, gh-3669
      x = [
          0,
          234,
          468,
          702,
          936,
          1170,
          1404,
          2340,
          3744,
          6084,
          8424,
          13104,
          60000,
      ]
      offset_cdf = np.array(
          [
              -0.95,
              -0.86114777,
              -0.8147762,
              -0.64072425,
              -0.48002351,
              -0.34925329,
              -0.26503107,
              -0.13148093,
              -0.12988833,
              -0.12979296,
              -0.12973574,
              -0.08582937,
              0.05,
          ]
      )
      f = KroghInterpolator(x, offset_cdf)
  
      assert_allclose(
          abs((f(x) - offset_cdf) / f.derivative(x, 1)), 0, atol=1e-10
      )
  
imports: import warnings
  import io
  import numpy
  from numpy.testing import assert_almost_equal, assert_array_equal, assert_array_almost_equal, assert_allclose, assert_equal, assert_
  from pytest import raises
  from scipy.interpolate import KroghInterpolator, krogh_interpolate, BarycentricInterpolator, barycentric_interpolate, approximate_taylor_polynomial, CubicHermiteSpline, pchip, PchipInterpolator, pchip_interpolate, Akima1DInterpolator, CubicSpline, make_interp_spline
label_desc: Use image node_id 17 for calling the TestKrogh obj's underlying member method code with example usage: obj.test_int_inputs() without return types