code: def test_trimseq_zerosize(self, xp, dtype):
      a = xp.zeros((0,), dtype)
      return xp.polynomial.polyutils.trimseq(a)
  
imports: import unittest
  import numpy
  import pytest
  import cupy
  from cupy import testing
label_desc: Use image node_id 4 for calling the TestTrimseq obj's underlying member method code with example usage: obj.test_trimseq_zerosize(xp, dtype) and returns: xp