/** A temporary overlay can suppress automatic read acknowledgement without deactivating the conversation. */
export declare function suspendArkmeVisibleReadIntent(): () => void;
export declare function subscribeArkmeReadIntentAvailability(listener: () => void): () => void;
export interface ArkmeReadIntentDocument {
    readonly visibilityState?: DocumentVisibilityState;
    hasFocus?(): boolean;
}
export declare function arkmeVisibleReadIntentAllowed(documentRef?: ArkmeReadIntentDocument | undefined): boolean;
export declare function arkmeAwaitVisibleReadIntent(documentRef?: ArkmeReadIntentDocument | undefined, nextFrame?: () => Promise<void>): Promise<boolean>;
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