code: def test_named_expression(works_ge_py38):
      works_ge_py38.parse("(a := 1, a + 1)")
  
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 18 for calling a global function with example usage: test_named_expression(works_ge_py38) without return types