code: def parse(name, string):
      parser = DefinitionParser(string, location=None, config=Config())
      parser.allowFallbackExpressionParsing = False
      ast = parser.parse_declaration(name, name)
      parser.assert_end()
      return ast
  
imports: import itertools
  import zlib
  from xml.etree import ElementTree
  import pytest
  from sphinx import addnodes
  from sphinx.addnodes import desc, desc_content, desc_name, desc_parameter, desc_parameterlist, desc_sig_name, desc_sig_space, desc_signature, desc_signature_line, pending_xref
  from sphinx.domains.c import DefinitionError, DefinitionParser, Symbol, _id_prefix, _macroKeywords, _max_id
  from sphinx.ext.intersphinx import load_mappings, normalize_intersphinx_mapping
  from sphinx.testing import restructuredtext
  from sphinx.testing.util import assert_node
  from sphinx.writers.text import STDINDENT
label_desc: Use image node_id 1 for calling a global function with example usage: parse(name, string) and returns: ast