/**
 * Bumped on every policy change. Components watch it to drop their cached HTML:
 * rendered blocks are strings, so nothing re-renders on its own.
 */
export declare const remoteImagePolicyVersion: import('vue').Ref<number, number>;
export declare function isRemoteImage(src: string): boolean;
export declare function isRemoteImageAllowed(src: string): boolean;
export declare function allowRemoteImageOnce(src: string): void;
export declare function allowRemoteImagesForSession(): void;
/**
 * Called by the host when the conversation changes. Consent was given for one
 * conversation; carrying it into the next one would silently widen it.
 */
export declare function resetRemoteImagePolicy(): void;
/** Test seam; not part of the public surface. */
export declare function remoteImagePolicyState(): {
    sessionAllowed: boolean;
    allowed: string[];
};