class_docstr: A iterator of record reader.
      
class_docstr_tok: ["A","iterator","of","record","reader","."]
code: def __next__(self):
      try:
          self._reader.get_next()
      except EOFError:
          raise StopIteration
      return self._reader.record()
  
file_path: VisualDL/visualdl/reader/record_reader.py
imports: from visualdl.io import bfile
  import struct
label_desc: Use image node_id 3 for calling the _RecordReaderIterator obj's underlying member method code with example usage: obj.__next__() and returns: self