 <span class="kind">val</span>
      </span>
      <span class="symbol">
        <span class="name">prefixForPieceId</span><span class="result">: <span class="extype" name="scala.Option">Option</span>[<span class="extype" name="scala.Predef.String">String</span>]</span>
      </span>
      
      <div class="fullcomment"><dl class="attributes block"> <dt>Definition Classes</dt><dd><a href="" class="extype" name="com.johnsnowlabs.nlp.annotators.tokenizer.bpe.Phi4Tokenizer">Phi4Tokenizer</a> → BpeTokenizer<