-import type { MessageValue, KillBehavior } from '../utility-types'
-import type { WorkerOptions } from './worker-options'
-import { killBehaviorEnumeration } from './worker-options'
+import type { MessageValue } from '../utility-types'
+import { EMPTY_FUNCTION } from '../utils'
+import type { KillBehavior, WorkerOptions } from './worker-options'
+import { KillBehaviors } from './worker-options'