import { type Action, type Link, type Graph } from 'graph/index.js';
export type InvalidResult = {
    isValid: false;
    error: ValidationError;
};
export type ValidResult = {
    isValid: true;
};
export declare class ValidationError extends Error {
    type: 'Hash graph validation error';
    details?: unknown;
    constructor(message: string, details?: any);
}
export type ValidationResult = ValidResult | InvalidResult;
export type Validator = <A extends Action, C>(link: Link<A, C>, graph: Graph<A, C>) => ValidationResult;
export type ValidatorSet = Record<string, Validator>;
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