/**
 * A problem encountered while attempting to validate a value against
 * a type guard/schema.
 */
export interface ValidationProblem {
    actualType?: string | undefined;
    expectedType?: string | undefined;
    message?: string | undefined;
    path?: string[] | undefined;
}
export declare const formatValidationProblem: (problem: ValidationProblem) => string;
export interface ValidationErrorOptions extends ErrorOptions {
    message?: string | undefined;
}
/**
 * An error which collects any number of problems encountered while
 * attempting to validate a value against a type schema/guard.
 */
export declare class ValidationError extends Error {
    readonly name = "ValidationError";
    readonly problems: ValidationProblem[];
    constructor(problems: ValidationProblem[], options?: ValidationErrorOptions);
}
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