code: def test_plus_expands_constant(self):
      for i in range(1, 6):
          vi = Variable("i", 1, 5).bind(i)
          a = Tensor.rand(3, i).reshape(3, vi)
          a = a + 1
          assert a.shape == (3, vi)
  
imports: import unittest
  from tinygrad.shape.shapetracker import ShapeTracker, View
  from tinygrad.shape.symbolic import Variable, NumNode
  from tinygrad.tensor import Tensor
label_desc: Use image node_id 2 for calling the TestSymbolicExpand obj's underlying member method code with example usage: obj.test_plus_expands_constant() without return types