code: def test_python2_octal(each_version):
      module = parse("0660", version=each_version)
      first = module.children[0]
      if each_version.startswith("2"):
          assert first.type == "number"
      else:
          assert first.type == "error_node"
  
imports: from textwrap import dedent
  import pytest
  from parso._compatibility import u
  from parso import parse
  from parso.python import tree
  from parso.utils import split_lines
label_desc: Use image node_id 13 for calling a global function with example usage: test_python2_octal(each_version) without return types