How to escape parentheses in lua?

Question

Lua

function auto_increment(arg1, arg2, arg3)
box.space.test:auto_increment{arg1, arg2, json.encode(setmetatable({EventTypeBCSM(0) = arg3}, { __serialize="map"}))}end
Please tell me how to escape parentheses in EventTypeBCSM(0) in this example?

Answer 1

function auto_increment(arg1, arg2, arg3)
  box.space.test:auto_increment({arg1,
    arg2,
    json.encode(setmetatable({["EventTypeBCSM(0)"] = arg3}, { __serialize="map"}))})
end