code: def test_no_aliasing_0(self):
      # B is a shared variable, A is updated with B's contents
      # we need A to be copied to avoid aliasing
      A = self.shared(np.zeros((2, 2)) + 0.5)
      B = self.shared(np.zeros((2, 2)) - 0.5)
      f = pfunc([], [], updates=[(A, B)])
      f()
      assert not np.may_share_memory(data_of(A), data_of(B))
  
imports: import numpy
  import pytest
  import pytensor.tensor
  from pytensor.compile import UnusedInputError, get_mode
  from pytensor.compile.function import function, pfunc
  from pytensor.compile.function.pfunc import rebuild_collect_shared
  from pytensor.compile.io import In
  from pytensor.compile.sharedvalue import shared
  from pytensor.configdefaults import config
  from pytensor.graph.utils import MissingInputError
  from pytensor.misc.safe_asarray import _asarray
  from pytensor.tensor.math import sum
  from pytensor.tensor.type import bscalar, bvector, dmatrices, dmatrix, dscalar, dvector, fscalar, fvector, imatrix, iscalar, ivector, ivectors, lscalar, wvector
  from pytensor.utils import PYTHON_INT_BITWIDTH
label_desc: Use image node_id 7 for calling the TestAliasingRules obj's underlying member method code with example usage: obj.test_no_aliasing_0() without return types