Expert Sleepers Augustus Loop v2.4.1 - Manual (Page 58)

Lua function, as can best be managed given the varying limitations of the two. Specifically,
the following table describes the mapping from OSC types to Lua types:
OSC Lua
bool bool
float number
double number
int32 number
int64 number
string string
nil nil
/call s:func s:returnUrl s:returnPath ...
As /exec, but also responds to the returnUrl and returnPath with the results of the Lua
function call. The following table describes the mapping from Lua return values to OSC
types:
Lua OSC
number float
string string
Lua types not in the above table are not handled.