code: def _read_parsed_block(self, stream):
      # TODO: figure out while empty documents are being returned
      return [
          self._parse(doc)
          for doc in self._read_block(stream)
          if self._parse(doc).docno is not None
      ]
  
file_path: nltk/nltk/corpus/reader/ieer.py
imports: import nltk
  from nltk.corpus.reader.api import *
label_desc: Use image node_id 3 for calling the IEERCorpusReader obj's underlying member method code with example usage: obj._read_parsed_block(stream) and returns: unknown