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Solve the following problem using Python, implementing the functions described below, one line at a time
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Description:
 def broadcast(data, root):
 """Broadcast object from one node to all other nodes. Parameters data : any type that can be pickled Input data, if current rank does not equal root, this can be None root : int Rank of the node to broadcast data from. Returns ------- object : int the result of broadcast. """

    rank = get_rank()
    length = ctypes.c_ulong()
    if root == rank:
        assert data is not None, 'need to pass in data when broadcasting'
        s = pickle.dumps(data, protocol=pickle.HIGHEST_PROTOCOL)
        length.value = len(s)
    # run first broadcast
    _LIB.RabitBroadcast(ctypes.byref(length),
                        ctypes.sizeof(ctypes.c_ulong), root)
    if root != rank:
        dptr = (ctypes.c_char * length.value)()
        # run second
        _LIB.RabitBroadcast(ctypes.cast(dptr, ctypes.c_void_p),
                            length.value, root)
        data = pickle.loads(dptr.raw)
        del dptr
    else:
        _LIB.RabitBroadcast(ctypes.cast(ctypes.c_char_p(s), ctypes.c_void_p),
                            length.value, root)
        del s
    return data