class_docstr: DataSource which loads data from CoNLL-U file.
class_docstr_tok: ["DataSource","which","loads","data","from","CoNLL-U","file","."]
code: def __init__(
      self,
      language=None,
      train_file=None,
      test_file=None,
      eval_file=None,
      field_names=None,
      delimiter=Config.delimiter,
      **kwargs,
  ):
      super().__init__(**kwargs)
      self.delimiter = delimiter
      self.language = language
      self._train_file = (
          self._read_file(train_file) if train_file else []
      )
      self._test_file = self._read_file(test_file) if test_file else []
      self._eval_file = self._read_file(eval_file) if eval_file else []
  
file_path: pytext/pytext/data/sources/conllu.py
imports: import threading
  from typing import Dict, List, Optional, Type
  from pytext.data.sources.data_source import RootDataSource, SafeFileWrapper
label_desc: Use image node_id 2 to create a new CoNLLUPOSDataSource object from inherited base classes: RootDataSource with example: obj = CoNLLUPOSDataSource(language, train_file, test_file, eval_file, field_names, delimiter)