code: def __init__(self, sts: List[ShapeTracker]):
      self.sts = sts
  
imports: import unittest
  from typing import List
  from tinygrad.helpers import prod
  from tinygrad.shape.view import View
  from tinygrad.shape.shapetracker import ShapeTracker
  from tinygrad.shape.symbolic import Variable, sym_infer
label_desc: Use image node_id 1 to create a new MultiShapeTracker object  with example: obj = MultiShapeTracker(sts)