mongoose/docs/c-api/http.h/mg_connect_ws_opt.md

title	decl_name	symbol_kind	signature
mg_connect_ws_opt()	mg_connect_ws_opt	func	struct mg_connection *mg_connect_ws_opt(struct mg_mgr *mgr, mg_event_handler_t ev_handler, struct mg_connect_opts opts, const char *url, const char *protocol, const char *extra_headers);

Helper function that creates an outbound WebSocket connection

Mostly identical to mg_connect_ws, but allows to provide extra parameters (for example, SSL parameters