Function of_execution_concurrent_engine_create_multi 

#[unsafe(no_mangle)]
pub extern "C" fn of_execution_concurrent_engine_create_multi(
    routes: *const of_execution_route_config_t,
    route_count: u32,
    config: *const of_execution_concurrent_config_t,
    out_engine: *mut *mut of_execution_concurrent_engine,
) -> i32

Creates and starts a concurrent simulated execution engine.