code: def prepare(self):
      if self.p is not None and not self.prepare_called:
          self.x, self.y = self.p.fix_tokenization(self.x, self.y)
      self.prepare_called = True
      return
  
file_path: ktrain/ktrain/text/ner/dataset.py
imports: from ...dataset import SequenceDataset
  from ...imports import *
label_desc: Use image node_id 2 for calling the NERSequence obj's underlying member method code with example usage: obj.prepare() without return types