TODO
If calling llMessageLinked directly, refer to the IMP documentation for information on how to translate the xiIMP_Send(...) syntax into a raw link message.
These are the canonical parameter names for the user-defined imp_message(...) function called by the Xi LSL Library when the link_message event handler is used. If handling the link_message event directly, refer to the IMP documentation for information on how these values are translated to and from link messages.