i am using redis-bus-event how can i emit my custom event ?

[spring pagoda]

this.eventBusService.emit("custom-event", {
// attach any data to the event
})
this was in medusajs documentation but how to import it or use it when i simply import it from "@medusajs/medusa" it gives error emit() does not exists on type EventBusService

[quartz spruce]

are you using it inside a custom service? make sure to register it first on the constructor! I attach an example from my code.