Handlers.add(
  "Broadcast",
  Handlers.utils.hasMatchingTag("Action", "Broadcast"),
  function(m)
    -- Add line below to set Balance to 0 if it doesn't exist.
    if not Balances then Balances = { [ao.id] = 0 } end
    if Balances[m.From] == nil or tonumber(Balances[m.From]) < 1 then
      print("UNAUTH REQ: " .. m.From)
      return
    end
    local type = m.Type or "Normal"
    print("Broadcasting message from " .. m.From .. ". Content: " .. m.Data)
    for i = 1, #Members, 1 do
      ao.send({
        Target = Members[i],
        Action = "Broadcasted",
        Broadcaster = m.From,
        Data = m.Data
      })
    end
  end
)