code: def test_vthread_x():
      _check(element_wise_vthread_x, unified_element_wise_vthread_x)
  
imports: import pytest
  import sys
  import tvm
  import tvm.testing
  from tvm import te
  from tvm.script import tir
label_desc: Use image node_id 19 for calling a global function with example usage: test_vthread_x() without return types