my solution to lua docstrings

doc.lua

local function doc(string)
  return setmetatable({doc = string}, {
    __concat = function(t, f)
      if type(f) == 'function'
        then t.func = f; return t
        else f.doc = t.doc .. '\n' .. f.doc; return f
      end
    end,
    __call = function(t, ...) return t.func(...) end
  })
end

local yeet =
doc('kektop') ..
doc('topkek') ..
function(a, b, c)
  print('kektop', a, b, c)
end

yeet('a', 'b', 'c')
print(yeet.doc)