export declare const CUSTOM_METAPHOR_SENTINEL = "custom";
export declare const CUSTOM_METAPHOR_SENTINEL_ERROR = "\"custom\" is a creation placeholder, not a valid saved metaphor. Register a custom metaphor plugin first, then choose its generated id.";
export declare function validateInterviewMetaphorId(id: string): string | null;
export declare function shouldPersistInterviewMetaphor(id: string): boolean;
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