title: In Lua, is there a way to find out what table a value is in?
body: <p>Example:</p>
  
  <pre><code>player = {}
  player.shape = {x = 0, y = 0, w = 50, h = 50}
  </code></pre>
  
  <p>Is there a function in Lua that would tell me what table player.shape is in, so I can do something like this:</p>
  
  <pre><code>shape_a = player.shape
  some_function(shape_a) = player
  </code></pre>