code: def check_unary_lower_precision(self, name, xp, scp, dtype):
      a = testing.shaped_arange((2, 3), xp, dtype)
      return self._check_unary(a, name, scp)
  
imports: import numpy
  import pytest
  import cupy
  from cupy import testing
  import cupyx.scipy.special
label_desc: Use image node_id 3 for calling the TestFusionSpecial obj's underlying member method code with example usage: obj.check_unary_lower_precision(name, xp, scp, dtype) and returns: self