class_docstr: A class representing an OCR engine with capabilities similar to Tesseract OCR.
  
  This could be used to create a plugin for another OCR engine instead of
  Tesseract OCR.
docstr: Returns the set of all languages that are supported by the engine.
  
  Languages are typically given in 3-letter ISO 3166-1 codes, but actually
  can be any value understood by the OCR engine.
code: def languages(options: Namespace) -> Set[str]:
      """Returns the set of all languages that are supported by the engine.
  
      Languages are typically given in 3-letter ISO 3166-1 codes, but actually
      can be any value understood by the OCR engine.
      """
  
imports: from __future__ import annotations
  from abc import ABC, abstractmethod
  from argparse import ArgumentParser, Namespace
  from collections.abc import Sequence, Set
  from logging import Handler
  from pathlib import Path
  from typing import TYPE_CHECKING, NamedTuple
  import pluggy
  from ocrmypdf import Executor, PdfContext
  from ocrmypdf._progressbar import ProgressBar
  from ocrmypdf.helpers import Resolution
label_desc: Use image node_id 4 for calling the OcrEngine obj's underlying member method code with example usage: obj.languages(options) without return types