code: def setup(app):
      app.add_role("jax-issue", jax_issue_role)
      app.add_role("doi", doi_role)
      return {
          "version": 1.0,
          "parallel_read_safe": True,
          "parallel_write_safe": True,
      }
  
imports: from docutils import nodes, utils
  from sphinx.util.nodes import split_explicit_title
label_desc: Use image node_id 3 for calling a global function with example usage: setup(app) and returns: dict