http4k-realtime-core/org.http4k.core/then

then

fun WsFilter.then(poly: PolyHandler): PolyHandler
fun Filter.then(poly: PolyHandler): PolyHandler
fun PolyFilter.then(next: PolyFilter): PolyFilter
fun PolyFilter.then(next: PolyHandler): PolyHandler
fun SseFilter.then(poly: PolyHandler): PolyHandler