code: def encode(self, text):
      bpe_tokens = []
      for token in re.findall(self.pat, text):
          token = "".join(
              self.byte_encoder[b] for b in token.encode("utf-8")
          )
          bpe_tokens.extend(
              self.encoder[bpe_token]
              for bpe_token in self.bpe(token).split(" ")
          )
      return bpe_tokens
  
file_path: gpt-2-simple/gpt_2_simple/src/encoder.py
imports: import os
  import json
  import regex
  from functools import lru_cache
label_desc: Use image node_id 3 for calling the Encoder obj's underlying member method code with example usage: obj.encode(text) and returns: bpe_tokens