Method indexBy

java/lib/src/main/java/io/github/ccxt/Exchange.java:916–918

(Object a, Object key)

    }

    public java.util.Map<String, Object> indexBy(Object a, Object key) {
        return io.github.ccxt.base.Generic.indexBy(a, key);
    }

    // groupBy
    public java.util.Map<String, Object> groupBy(Object trades, Object key) {