code: def b(self, bval):
      return tensor.as_tensor_variable(
          np.asarray(bval, dtype=self.dtype)
      )
  
imports: from __future__ import absolute_import, print_function, division
  import sys
  import numpy
  import theano
  import theano.tensor
  from theano.tensor.blas_scipy import ScipyGer
  from .test_blas import TestCase, gemm_no_inplace, TestBlasStrides
  from theano.tests.unittest_tools import TestOptimizationMixin
label_desc: Use image node_id 4 for calling the TestScipyGer obj's underlying member method code with example usage: obj.b(bval) and returns: tensor