listeners() 
Returns an array of listener functions registered for a given event.
Example 
typescript
const handlers = instance.listeners("foo");
// handlers: [fn1, fn2]Parameters 
| Parameter | Type | Description | 
|---|---|---|
| event | string | symbol | The event name. Expects an ESMitterEventName. | 
Returns 
| Type | Description | 
|---|---|
| Function[] | An array of listener functions registered for the event. | 
Notes 
- If no listeners are registered for the event, an empty array is returned.