docstr: The prefix token.
  Inference with echo=True is not feasible, so just set it to the empty string.
docstr_tok: ["The","prefix","token",".","Inference","with","echo=True","is","not","feasible",",","so","just","set","it","to","the","empty","string","."]
code: def prefix_token(self) -> str:
      """
      The prefix token.
      Inference with echo=True is not feasible, so just set it to the empty string.
      """
      return ""
  
file_path: H2O/h2o_hf/helm/src/helm/benchmark/window_services/ice_window_service.py
imports: from .local_window_service import LocalWindowService
  from .tokenizer_service import TokenizerService
label_desc: Use image node_id 6 for calling the ICEWindowService obj's underlying member method code with example usage: obj.prefix_token() and returns: str