class_docstr: A class for managing multiple kernels.
class_docstr_tok: ["A","class","for","managing","multiple","kernels","."]
docstr: Shutdown all kernels.
code: def shutdown_all(self, now=False):
      """Shutdown all kernels."""
      kids = self.list_kernel_ids()
      for kid in kids:
          self.request_shutdown(kid)
      for kid in kids:
          self.finish_shutdown(kid)
          self.cleanup(kid)
          self.remove_kernel(kid)
  
imports: from __future__ import absolute_import
  import os
  import uuid
  import zmq
  from traitlets.config.configurable import LoggingConfigurable
  from ipython_genutils.importstring import import_item
  from traitlets import Any, Bool, Dict, DottedObjectName, Instance, Unicode, default, observe
  from ipython_genutils.py3compat import unicode_type
  from .kernelspec import NATIVE_KERNEL_NAME, KernelSpecManager
label_desc: Use image node_id 15 for calling the MultiKernelManager obj's underlying member method code with example usage: obj.shutdown_all(now) without return types