The following union shows the specific data structure that is included for functions that use the LUA_SPECIFIC part of a verb control block. The only LUA verbs that use this union are RUI_BID, SLI_BID, SLI_OPEN, and SLI_SEND.
union LUA_SPECIFIC {
struct SLI_OPEN open;
unsigned char lua_sequence_number[2];
unsigned char lua_peek_data[12];
} LUA_SPECIFIC;