code: def test_exponential(self):
      degree = 5
      p = approximate_taylor_polynomial(np.exp, 0, degree, 1, 15)
      for i in range(degree + 1):
          assert_almost_equal(p(0), 1)
          p = p.deriv()
      assert_almost_equal(p(0), 0)
  
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 1 for calling the TestTaylor obj's underlying member method code with example usage: obj.test_exponential() without return types