docstr: All format-specific elements are supported.
code: def supports(self, format: str) -> bool:
      """All format-specific elements are supported."""
      return True
  
file_path: sphinx/sphinx/writers/xml.py
imports: from __future__ import annotations
  from typing import TYPE_CHECKING, Any
  from docutils.writers.docutils_xml import Writer
label_desc: Use image node_id 3 for calling the PseudoXMLWriter obj's underlying member method code with example usage: obj.supports(format) and returns: True