parameters: (lang: str)
return_statement: return lang in _LANGS
docstring: Check if has stopwords for a language.
  
      Parameters
      ----------
      lang : str
          a language to check, in ISO 639-1 language code.
  
      Returns
      -------
      bool
          True if available, False otherwise.
docstring_summary: Check if has stopwords for a language.
docstring_tokens: Check if has stopwords for a language .
function: def has_lang(lang: str) -> bool:
      """Check if has stopwords for a language.
  
      Parameters
      ----------
      lang : str
          a language to check, in ISO 639-1 language code.
  
      Returns
      -------
      bool
          True if available, False otherwise.
      """
      return lang in _LANGS
function_tokens: def has_lang ( lang : str ) -> bool : return lang in _LANGS