code: def test_trim_non_zeros(self, xp, dtype):
      a = xp.array([-1, 2, -3, 7]).astype(dtype)
      return xp.trim_zeros(a, trim=self.trim)
  
imports: import unittest
  import pytest
  import numpy
  import cupy
  from cupy import testing
label_desc: Use image node_id 1 for calling the TestTrim_zeros obj's underlying member method code with example usage: obj.test_trim_non_zeros(xp, dtype) and returns: xp