import type { PreviewDocument, ResolvedPreviewDocument } from "./types.js";
type AnnotatableDocument = Pick<PreviewDocument, "fileName" | "file"> & Partial<Pick<ResolvedPreviewDocument, "displayName">>;
/** Stable per-document key for annotation/signature persistence. */
export declare function resolveAnnotationDocumentId(document?: AnnotatableDocument | null, fallback?: string): string;
export {};
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