code: def test_pickle(self):
      out = ScipyGer(destructive=False)(self.A, self.a, self.x, self.y)
      f = pytensor.function([self.A, self.a, self.x, self.y], out)
      new_f = pickle.loads(pickle.dumps(f))
  
      assert isinstance(new_f.maker.fgraph.toposort()[-1].op, ScipyGer)
      assert np.allclose(
          f(self.Aval, 1.0, self.xval, self.yval),
          new_f(self.Aval, 1.0, self.xval, self.yval),
      )
  
imports: import pickle
  import numpy
  import pytest
  import pytensor
  from pytensor import tensor
  from pytensor.tensor.blas_scipy import ScipyGer
  from pytensor.tensor.math import outer
  from pytensor.tensor.type import tensor
  from tests.tensor.test_blas import TestBlasStrides, gemm_no_inplace
  from tests.unittest_tools import OptimizationTestMixin
label_desc: Use image node_id 9 for calling the TestScipyGer obj's underlying member method code with example usage: obj.test_pickle() without return types