code: def var_dom(iters):
      """Get domains of iterators"""
      return {var: tvm.ir.Range(0, ext) for var, ext in iters}
  
imports: import tvm
  import tvm.testing
  from tvm.tir import floordiv, floormod
label_desc: Use image node_id 3 for calling a global function with example usage: var_dom(iters) and returns: unknown