Function lua_rawset 

pub unsafe extern "C-unwind" fn lua_rawset(
    L: *mut lua_State,
    idx: c_int,
)

Raw-sets a value in a table at the given index with the key at the top of the stack.

This function is equivalent to the Luau code rawset(t, k, v) where t is at the given index, v is at the top of the stack, and k is right below v.

Both the key and value will be popped from the stack.