import type { ValidationOptions } from "class-validator";
export declare const METADATA_DOCS = "You can store any additional data you want here.\nMetadata must have at most 50 keys, each key up to 40 characters.\nValues can be strings (up to 500 characters), numbers, or booleans.";
export type Metadata = Record<string, string | number | boolean>;
export declare function ValidateMetadata(validationOptions?: ValidationOptions): (object: any, propertyName: string) => void;
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