Function std::server_fn_call
struct Value server_fn_call(
const &char host,
unsigned short port,
const &char name,
const ?&Value args,
?&int ok,
)Calls the server function named 'name' at host:port with 'args' (may be NULL for a no-argument function — sent as a JSON null). *ok is set to 0 (result is VAL_NULL) on any transport/handler/JSON failure.