class_docstr: Builds LaTeX output to create PDF.
class_docstr_tok: ["Builds","LaTeX","output","to","create","PDF","."]
code: def init_babel(self) -> None:
      self.babel = ExtBabel(
          self.config.language, not self.context["babel"]
      )
      if not self.babel.is_supported_language():
          # emit warning if specified language is invalid
          # (only emitting, nothing changed to processing)
          logger.warning(
              __("no Babel option known for language %r"),
              self.config.language,
          )
  
imports: from __future__ import annotations
  import os
  import warnings
  from os import path
  from typing import TYPE_CHECKING, Any
  from docutils.frontend import OptionParser
  import sphinx.builders.latex.nodes
  from sphinx import addnodes, highlighting, package_dir
  from sphinx.builders import Builder
  from sphinx.builders.latex.constants import ADDITIONAL_SETTINGS, DEFAULT_SETTINGS, SHORTHANDOFF
  from sphinx.builders.latex.theming import Theme, ThemeFactory
  from sphinx.builders.latex.util import ExtBabel
  from sphinx.config import ENUM, Config
  from sphinx.environment.adapters.asset import ImageAdapter
  from sphinx.errors import NoUri, SphinxError
  from sphinx.locale import _, __
  from sphinx.util import logging, texescape
  from sphinx.util.console import bold, darkgreen
  from sphinx.util.display import progress_message, status_iterator
  from sphinx.util.docutils import SphinxFileOutput, new_document
  from sphinx.util.fileutil import copy_asset_file
  from sphinx.util.i18n import format_date
  from sphinx.util.nodes import inline_all_toctrees
  from sphinx.util.osutil import SEP, make_filename_from_project
  from sphinx.util.template import LaTeXRenderer
  from sphinx.writers.latex import LaTeXTranslator, LaTeXWriter
  from docutils import nodes
label_desc: Use image node_id 8 for calling the LaTeXBuilder obj's underlying member method code with example usage: obj.init_babel() without return types