class_docstr: The heartbeat channel which monitors the kernel heartbeat.
  
  Note that the heartbeat channel is paused by default. As long as you start
  this channel, the kernel manager will ensure that it is paused and un-paused
  as appropriate.
class_docstr_tok: ["The","heartbeat","channel","which","monitors","the","kernel","heartbeat",".","Note","that","the","heartbeat","channel","is","paused","by","default",".","As","long","as","you","start","this","channel",",","the","kernel","manager","will","ensure","that","it","is","paused","and","un-paused","as","appropriate","."]
docstr: Unpause the heartbeat.
docstr_tok: ["Unpause","the","heartbeat","."]
code: def unpause(self):
      """Unpause the heartbeat."""
      self._pause = False
  
imports: from __future__ import absolute_import
  import atexit
  import errno
  from threading import Thread, Event
  import time
  import zmq
  from zmq import ZMQError
  from jupyter_client import protocol_version_info
  from .channelsabc import HBChannelABC
label_desc: Use image node_id 7 for calling the HBChannel obj's underlying member method code with example usage: obj.unpause() without return types