code: def test_hsplit(self, xp):
      a = testing.shaped_arange((3, 12), xp)
      return xp.hsplit(a, 4)
  
imports: import unittest
  from cupy import testing
label_desc: Use image node_id 11 for calling the TestSplit obj's underlying member method code with example usage: obj.test_hsplit(xp) and returns: xp