int32Numbers: a table containing int32 numbers. Non-numbers will be packed as zero values
startInt32Index: the zero-based index from which on data should be packed. Can be omitted in which case 0 is used
int32Count: the amount of int32s that should be packed. Can be omitted in which case 0 is used (which indicates that the maximum available int32s should be packed from the indicated startInt32Index) |