Accessing Lua 5.1 Functions?

Hello! I'm currently wondering if there is any work-arround ROBLOX Lua's restriction on the base functions of standard Lua 5.1.

As of now I have no ways to access debug.getinfo(), which I'm tending to use a lot of lately.

Essentially, is there any way to access it in ROBLOX Lua without implementing it, or does ROBLOX Lua not even support it in its auxiliary or C API?