code: def test_complex(self, xp, scp):
      x = xp.array([1, 2, 3, 4])
      y = xp.array([1, 2, 1j, 3])
      xi = xp.array([0, 8, 1, 5])
      return scp.interpolate.BarycentricInterpolator(x, y)(xi)
  
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 10 for calling the TestBarycentric obj's underlying member method code with example usage: obj.test_complex(xp, scp) and returns: scp