High-Frequency MACD

Query intraday minute-bar MACD (Moving Average Convergence Divergence) for A-share securities via the market data service.MACD = EMA(short) - EMA(long); signal = EMA(MACD, signal_period).Default: short=12, long=26, signal=9.line selects the output series: DIFF (fast-slow), DEA (signal), or MACD (histogram).codes: comma-separated security codes (e.g. '600000.SH,000001.SZ').interval: minute bar width — 1/3/5/10/15/30/60.starttime/endtime: 'YYYY-MM-DD HH: MM: SS' intraday range.