class_docstr: Runs end-to-end tokenziation.
class_docstr_tok: ["Runs","end-to-end","tokenziation","."]
docstr: Add cmdline argurments.
docstr_tok: ["Add","cmdline","argurments","."]
code: def add_cmdline_args(cls, parser):
      """Add cmdline argurments."""
      group = parser.add_argument_group("Tokenizer")
      group.add_argument("--vocab_path", type=str, required=True)
      group.add_argument(
          "--do_lower_case", type=str2bool, default=False
      )
      group.add_argument("--spm_model_file", type=str, required=True)
      return group
  
imports: import collections
  import sentencepiece
  import unicodedata
  from .args import str2bool
label_desc: Use image node_id 1 for calling the SentencePieceTokenizer obj's underlying member method code with example usage: obj.add_cmdline_args(cls, parser) and returns: group