class_docstr: Create a zmq Context
  
  A zmq Context creates sockets via its ``ctx.socket`` method.
class_docstr_tok: ["Create","a","zmq","Context","A","zmq","Context","creates","sockets","via","its","``","ctx.socket","``","method","."]
docstr: Shadow an existing libzmq context
  
  address is the integer address of the libzmq context
  or an FFI pointer to it.
  
  .. versionadded:: 14.1
docstr_tok: ["Shadow","an","existing","libzmq","context","address","is","the","integer","address","of","the","libzmq","context","or","an","FFI","pointer","to","it",".","..","versionadded",":",":","14.1"]
code: def shadow(cls, address):
      """Shadow an existing libzmq context
  
      address is the integer address of the libzmq context
      or an FFI pointer to it.
  
      .. versionadded:: 14.1
      """
      from zmq.utils.interop import cast_int_addr
  
      address = cast_int_addr(address)
      return cls(shadow=address)
  
imports: import atexit
  import os
  from threading import Lock
  from weakref import WeakSet
  from zmq.backend import Context
  from .None import constants
  from .attrsettr import AttributeSetter
  from .constants import ENOTSUP, LINGER, ctx_opt_names
  from .socket import Socket
  from zmq.error import ZMQError
label_desc: Use image node_id 6 for calling the Context obj's underlying member method code with example usage: obj.shadow(cls, address) and returns: cls