import { t } from "@rbxts/t";
type Listener = (isQualified: boolean, instance: Instance) => void;
export interface Criteria {
    tag?: string;
    typeGuard?: t.check<unknown>;
    typeGuardPoll?: boolean;
    typeGuardPollAtomic?: boolean;
    dependencies?: ComponentTracker[];
    warningTimeout?: number;
}
export declare class ComponentTracker {
    private identifier;
    private criteria;
    private instances;
    constructor(identifier: string, criteria: Criteria);
    private getInstanceTracker;
    private updateListeners;
    private setupTracker;
    private testInstance;
    /**
     * Sets whether this instance has the required tag.
     * This is called by Components for efficiency.
     */
    setHasTag(instance: Instance, hasTag: boolean): void;
    checkInstance(instance: Instance): boolean;
    isTracked(instance: Instance): boolean;
    trackInstance(instance: Instance, listener: Listener): void;
    untrackInstance(instance: Instance, listener: Listener): void;
}
export {};