code: def test_lower_packed_func():
      check_packed_func("llvm")
      check_packed_func("stackvm")
  
imports: import tvm
  import tvm.testing
  from tvm import te
  from tvm.script import tir
  import numpy
  from tvm.tir.schedule.testing import assert_structural_equal_ignore_global_symbol
label_desc: Use image node_id 3 for calling a global function with example usage: test_lower_packed_func() without return types