/**
 * Document-method: MessagePack::Unpacker#stream=
 *
 * call-seq:
 *   unpacker.stream = stream
 *
 * Resets the input stream. You can set nil not to use input stream.
 */
static VALUE MessagePack_Unpacker_stream_set(VALUE self, VALUE val)
{
        UNPACKER(self, mp);
        mp->user.stream = val;
        mp->user.stream_append_method = append_method_of(val);
        return val;
}