import type { ConfigV1 } from "./types.js";
export declare const DEFAULT_IMPORT_MAX_BYTES = 1048576;
export interface ImportParseOptions {
    readonly maxBytes?: number;
    readonly migrate?: (value: unknown) => unknown;
}
export interface TransferPreview {
    readonly config: ConfigV1;
    readonly changed: boolean;
    readonly before?: string;
    readonly after: string;
}
/** Export semantic configuration only; storage/runtime metadata is omitted. */
export declare function exportConfig(config: ConfigV1): string;
/** Parse, migrate, and validate an import without touching disk. */
export declare function parseConfigImport(input: string | unknown, options?: ImportParseOptions): ConfigV1;
export declare function previewConfigImport(input: string | unknown, current: ConfigV1 | undefined, options?: ImportParseOptions): TransferPreview;