copy

fun copy(field: QueryField<*> = this.field, offset: String = this.offset, zoneId: String? = this.zoneId, datePattern: String? = this.datePattern, dateFormatter: DateTimeFormatter? = this.dateFormatter, timeUnit: TimeUnit = this.timeUnit): BeforeNowFilter

This BeforeNowFilter with the given values replaced; for Wow's own query rewriting.