code: def test_get_output_for(self, layer):
      a = numpy.array([[0, 1], [2, 3]])
      b = numpy.array([[1, 2], [4, 5]])
      inputs = [theano.shared(a), theano.shared(b)]
      result = layer.get_output_for(inputs)
      result_eval = result.eval()
      desired_result = a * b
      assert (result_eval == desired_result).all()
  
imports: from mock import Mock
  import numpy
  import pytest
  import theano
label_desc: Use image node_id 2 for calling the TestElemwiseMergeLayerMul obj's underlying member method code with example usage: obj.test_get_output_for(layer) without return types