class_docstr: Full Wikipedia teacher that splits the chunks into train/valid/test.
class_docstr_tok: ["Full","Wikipedia","teacher","that","splits","the","chunks","into","train\/valid\/test","."]
code: def __init__(self, opt, shared=None):
      self.TRAINSIZE = 5437097
      self.VALIDSIZE = 71052
      self.TESTSIZE = 39975
  
      if shared is None:
          # set map
          self.opt = opt
          self._set_chunk_idx_to_file()
      else:
          self.chunk_idx_to_file = shared["chunk_idx_to_file"]
      super().__init__(opt, shared)
  
imports: from parlai.core.teachers import DialogTeacher, ChunkTeacher, ChunkOutput
  from parlai.utils.io import PathManager
  from parlai.core.message import Message
  from .build import build
  import json
  import os
  from typing import List, Tuple
label_desc: Use image node_id 1 to create a new FullSplitTeacher object from inherited base classes: ChunkTeacher with example: obj = FullSplitTeacher(opt, shared)