code: def test_shrink_reshape(self):
      x = Variable("x", 1, 100).bind(3)
      st = ShapeTracker.from_shape((10, 10, 10)).shrink(
          ((x, x + 3), (3, 7), (2, 5))
      )
      st = st.reshape((3 * 4 * 3,))
      assert st.var_vals == {Variable("x", 1, 100): 3}
  
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 6 for calling the TestSymbolicVarVals obj's underlying member method code with example usage: obj.test_shrink_reshape() without return types