#include endpoint WebSocketServer { // Connection API connect(URL url, ByteString origin, Vector protocols, Vector extensions, HashMap additional_request_headers) => (i32 connection_id) ready_state(i32 connection_id) => (u32 ready_state) subprotocol_in_use(i32 connection_id) => (ByteString subprotocol_in_use) send(i32 connection_id, bool is_text, ByteBuffer data) =| close(i32 connection_id, u16 code, ByteString reason) =| set_certificate(i32 connection_id, ByteString certificate, ByteString key) => (bool success) }