如何将 pine 脚本策略转换为指标？

Question

下面是我的简单 EMA 策略。如何将其转换为指标？ 请注意“开盘时间”和“万能出场”，即在交易所收盘前全部平仓。

//@version=5
strategy("EMAs Strategy", overlay = true, calc_on_every_tick=true, 
process_orders_on_close = true)

session_time = input.session("0925-1520", "Session")
is_in_session = time(timeframe.period, session_time)
ema10Close = ta.ema(close, 10)
ema20Close = ta.ema(close, 20)

longEntryCondition = (is_in_session) and (ta.crossover(ema10Close, 
ema20Close))
longCloseCondition = (is_in_session) and (ta.crossunder(ema10Close, 
ema20Close))
if (longEntryCondition)
   strategy.entry("Long", strategy.long)
if (longCloseCondition)
strategy.close("Long")

shortEntryCondition = (is_in_session) and (ta.crossunder(ema10Close , 
ema20Close))
shortCloseCondition = (is_in_session) and (ta.crossover(ema10Close , 
ema20Close))

if (shortEntryCondition)
strategy.entry("Short", strategy.short)
if (shortCloseCondition)
    strategy.close("Short")    

if not is_in_session
    strategy.close_all(comment = 'Trading session ended, all positions 
closed.')

plot(ema10Close, color = color.new(color.blue, 0), linewidth = 1)
plot(ema20Close, color = color.new(color.red, 0), linewidth = 1)