Pre-allocate hash table capacity with table.create

[VoidedzZz]

I have recently ran in to some cases where it might seem useful to be able to pre-allocate not just the array part of a table using table.create, but also pre-allocating the hash part to a known or desired size.

when doing my research I found that Lua 5.1"s lua_createtable achieves this exact functionality:
https://www.lua.org/manual/5.1/manual.html

lua_createtable

void lua_createtable (lua_State *L, int narr, int nrec);

Creates a new empty table and pushes it onto the stack. The new table has space pre-allocated for narr array elements and nrec non-array elements. This pre-allocation is useful when you know exactly how many elements the table will have. Otherwise you can use the function lua_newtable.

Could an additional, perhaps optional, parameter be added to table.create to expose this functionality?

[phoriah]

Wouldn't this work as an alternative?

local preallocated_table = {HashKey = nil, HashKey2 = nil, HashKey3 = nil}