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Sorry for the vague subject. I don't know better words to summarize my question.

The following code prints
You called foo

Is there any way for the function f to modify o.test? In my code there could be multiple o tables, all sharing the t metatable. I would like function f to store state information in each individual o table.

t = {}

setmetatable(t, {__index =
  function(_, k)
    local function f()
      print("You called " .. k)
    return f

o = setmetatable({ test=1 }, t)
t.__index = t