code: def test_free_vars_zeros():
      target = "test_free_vars_zeros"
  
      """Test that free variables compile correctly on their own"""
  
      def before():
          func = relay.Function(
              [], relay.zeros(shape=(0), dtype="float32")
          )
          mod = tvm.IRModule.from_expr(func)
          return mod
  
      def after():
          func = relay.Function(
              [], relay.zeros(shape=(0), dtype="float32")
          )
          mod = tvm.IRModule.from_expr(func)
          return mod
  
      result = transform.AnnotateTarget(target)(before())
      expected = transform.InferType()(after())
      assert tvm.ir.structural_equal(expected, result)
  
imports: import os
  import sys
  import numpy
  import pytest
  import tvm
  import tvm.relay.testing
  import tvm.relay.transform
  from tvm import relay
  from tvm import runtime
  from tvm.contrib import utils
label_desc: Use image node_id 16 for calling a global function with example usage: test_free_vars_zeros() and returns: mod, mod