code: def test_region_lower_bound_multiple_variables():
      div = tvm.tir.floordiv
      mod = tvm.tir.floormod
      x = tvm.tir.Var("x", "int32")
      wid = tvm.tir.Var("wid", "int32")
      i = div(x, 16)
      j = div(mod(x, 16), 4) * 8 + mod(x, 4) + div(wid, 32) * 4
      k = wid % 32
      var_dom = {
          x: tvm.ir.Range(begin=0, end=32),
          wid: tvm.ir.Range(begin=0, end=64),
      }
      check_region_bound(
          {i: (0, 2), j: (0, 32), k: (0, 32)},
          var_dom,
          mode="lowerbound",
      )
  
imports: import tvm
  import tvm.testing
  from tvm import te
  from tvm import tir
  from tvm.arith.analyzer import Analyzer
label_desc: Use image node_id 13 for calling a global function with example usage: test_region_lower_bound_multiple_variables() without return types