code: def _remove_prefix(text, prefix):
      if text.startswith(prefix):
          return text[len(prefix) :]
      return text
  
imports: import datetime
  import sys
  import warnings
  from typing import List, TYPE_CHECKING, Tuple, Type, Optional, TextIO
  import torch
  from avalanche.core import SupervisedPlugin
  from avalanche.evaluation.metric_results import MetricValue, TensorImage
  from avalanche.logging import BaseLogger
  from avalanche.evaluation.metric_utils import stream_type, phase_and_task
label_desc: Use image node_id 1 for calling a global function with example usage: _remove_prefix(text, prefix) and returns: text, text