title: Is it possible to list all the functions of a table?
body: <p>I'm new to the Lua Programming Language and I can't find a way to list all the existent functions that were defined in a given table. <a href="http://www.gammon.com.au/scripts/doc.php?general=lua_debug" rel="nofollow">I've checked the documentation for the debug table</a> and it's possible to get the details only of functions, not of whole tables.</p>
  
  <p>Is there something like the <a href="https://docs.python.org/2/library/functions.html#dir" rel="nofollow">dir()</a> function of the Python Interpreter in Lua? Is it possible to list all the methods/functions of a table?</p>