docstr: Returns a list of file identifiers for the fileids that make up
  this corpus.
docstr_tok: ["Returns","a","list","of","file","identifiers","for","the","fileids","that","make","up","this","corpus","."]
code: def fileids(self):
      """
      Returns a list of file identifiers for the fileids that make up
      this corpus.
      """
      return [f.split("header.xml")[0] for f in self._fileids]
  
imports: import functools
  import os
  import re
  import tempfile
  from nltk.corpus.reader.util import concat
  from nltk.corpus.reader.xmldocs import XMLCorpusReader, XMLCorpusView
label_desc: Use image node_id 3 for calling the NKJPCorpusReader obj's underlying member method code with example usage: obj.fileids() and returns: unknown