<SYSTEM_TASK:>
Solve the following problem using Python, implementing the functions described below, one line at a time
<END_TASK>
<USER_TASK:>
Description:
 def pack(x: Any) -> bytes: """Encode ``x`` into msgpack with additional encoders."""

    try:
        return msgpack.packb(x, default=encoders)
    except TypeError as exc:
        message = ('Serialization error, check the data passed to a do_ command. '
                   'Cannot serialize this object:\n') + str(exc)[16:]
        raise SerializationError(message)