code: def is_chinese(lang):
      """
      include additional languages due to mistakes on short texts by langdetect
      """
      return (
          lang is not None
          and lang.startswith("zh-")
          or lang in ["ja", "ko"]
      )
  
file_path: ktrain/ktrain/text/shallownlp/utils.py
imports: from .imports import *
label_desc: Use image node_id 3 for calling a global function with example usage: is_chinese(lang) and returns: unknown