code: def setUp(self):
      self.dtype = numpy.dtype(self.dtype)
      self.tol = self._tol[self.dtype.char.lower()]
  
imports: import numpy
  import pytest
  import cupy
  from cupy import cublas
  from cupy import testing
label_desc: Use image node_id 1 for calling the TestLevel1Functions obj's underlying member method code with example usage: obj.setUp() without return types