public LocalDateTime key()

in src/main/java/com/epam/eco/commons/series/TimeSeries.java [158:163]

• 5 lines of code
• 2 McCabe index (conditional complexity)

    public LocalDateTime key(LocalDateTime date) {
        Validate.notNull(date, "Date is null");

        date = toSerialKey(date);
        return data.containsKey(date) ? date : null;
    }