class_docstr: Package data with crc32 or not.
      
class_docstr_tok: ["Package","data","with","crc32","or","not","."]
code: def __init__(self, writer):
      self._writer = writer
  
imports: from visualdl.io import bfile
  from visualdl.utils.crc32 import masked_crc32c
  from visualdl.proto import record_pb2
  import struct
  import time
  import queue
  import threading
  import os
label_desc: Use image node_id 1 to create a new RecordWriter object from inherited base classes: object with example: obj = RecordWriter(writer)