import { EventEmitter } from '@angular/core';
import { InterruptArgs } from './interruptargs';
import { InterruptOptions } from './interruptoptions';
export declare abstract class InterruptSource {
    protected attachFn?: (source: InterruptSource) => void;
    protected detachFn?: (source: InterruptSource) => void;
    isAttached: boolean;
    onInterrupt: EventEmitter<InterruptArgs>;
    constructor(attachFn?: (source: InterruptSource) => void, detachFn?: (source: InterruptSource) => void);
    attach(): void;
    detach(): void;
    initialize?(options?: InterruptOptions): void;
}
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