How to use the ipyparallel.serialize.canning.can function in ipyparallel

Containers (lists, dicts) larger than this will be pickled without
        introspection.

    Returns
    -------
    [bufs] : list of buffers representing the serialized object.
    """
    buffers = []
    if istype(obj, sequence_types) and len(obj) < item_threshold:
        cobj = can_sequence(obj)
        for c in cobj:
            buffers.extend(_extract_buffers(c, buffer_threshold))
    elif istype(obj, dict) and len(obj) < item_threshold:
        cobj = {}
        for k in sorted(obj):
            c = can(obj[k])
            buffers.extend(_extract_buffers(c, buffer_threshold))
            cobj[k] = c
    else:
        cobj = can(obj)
        buffers.extend(_extract_buffers(cobj, buffer_threshold))

    buffers.insert(0, pickle.dumps(cobj, PICKLE_PROTOCOL))
    return buffers

-------
    [bufs] : list of buffers representing the serialized object.
    """
    buffers = []
    if istype(obj, sequence_types) and len(obj) < item_threshold:
        cobj = can_sequence(obj)
        for c in cobj:
            buffers.extend(_extract_buffers(c, buffer_threshold))
    elif istype(obj, dict) and len(obj) < item_threshold:
        cobj = {}
        for k in sorted(obj):
            c = can(obj[k])
            buffers.extend(_extract_buffers(c, buffer_threshold))
            cobj[k] = c
    else:
        cobj = can(obj)
        buffers.extend(_extract_buffers(cobj, buffer_threshold))

    buffers.insert(0, pickle.dumps(cobj, PICKLE_PROTOCOL))
    return buffers

-------
    [bufs] : list of buffers representing the serialized object.
    """
    buffers = []
    if istype(obj, sequence_types) and len(obj) < item_threshold:
        cobj = can_sequence(obj)
        for c in cobj:
            buffers.extend(_extract_buffers(c, buffer_threshold))
    elif istype(obj, dict) and len(obj) < item_threshold:
        cobj = {}
        for k in sorted(obj):
            c = can(obj[k])
            buffers.extend(_extract_buffers(c, buffer_threshold))
            cobj[k] = c
    else:
        cobj = can(obj)
        buffers.extend(_extract_buffers(cobj, buffer_threshold))

    buffers.insert(0, pickle.dumps(cobj, PICKLE_PROTOCOL))
    return buffers

[ cf, pinfo, ,  ]

    With length at least two + len(args) + len(kwargs)
    """

    arg_bufs = list(chain.from_iterable(
        serialize_object(arg, buffer_threshold, item_threshold) for arg in args))

    kw_keys = sorted(kwargs.keys())
    kwarg_bufs = list(chain.from_iterable(
        serialize_object(kwargs[key], buffer_threshold, item_threshold) for key in kw_keys))

    info = dict(nargs=len(args), narg_bufs=len(arg_bufs), kw_keys=kw_keys)

    msg = [pickle.dumps(can(f), PICKLE_PROTOCOL)]
    msg.append(pickle.dumps(info, PICKLE_PROTOCOL))
    msg.extend(arg_bufs)
    msg.extend(kwarg_bufs)

    return msg

Containers (lists, dicts) larger than this will be pickled without
        introspection.

    Returns
    -------
    [bufs] : list of buffers representing the serialized object.
    """
    buffers = []
    if istype(obj, sequence_types) and len(obj) < item_threshold:
        cobj = can_sequence(obj)
        for c in cobj:
            buffers.extend(_extract_buffers(c, buffer_threshold))
    elif istype(obj, dict) and len(obj) < item_threshold:
        cobj = {}
        for k in sorted(obj):
            c = can(obj[k])
            buffers.extend(_extract_buffers(c, buffer_threshold))
            cobj[k] = c
    else:
        cobj = can(obj)
        buffers.extend(_extract_buffers(cobj, buffer_threshold))

    buffers.insert(0, pickle.dumps(cobj, PICKLE_PROTOCOL))
    return buffers

[ cf, pinfo, ,  ]

    With length at least two + len(args) + len(kwargs)
    """

    arg_bufs = list(chain.from_iterable(
        serialize_object(arg, buffer_threshold, item_threshold) for arg in args))

    kw_keys = sorted(kwargs.keys())
    kwarg_bufs = list(chain.from_iterable(
        serialize_object(kwargs[key], buffer_threshold, item_threshold) for key in kw_keys))

    info = dict(nargs=len(args), narg_bufs=len(arg_bufs), kw_keys=kw_keys)

    msg = [pickle.dumps(can(f), PICKLE_PROTOCOL)]
    msg.append(pickle.dumps(info, PICKLE_PROTOCOL))
    msg.extend(arg_bufs)
    msg.extend(kwarg_bufs)

    return msg