import type { EvalExample, EvalExampleInput } from "./types.js";
export declare function createEvalValidationError(message: string): Error;
export declare function stringifyEvalError(value: unknown): string;
export declare function isEvalRecord(value: unknown): value is Record<string, unknown>;
export declare function normalizeEvalString(value: unknown, label: string): string;
export declare function assertCanonicalEvalString(value: unknown, label: string): asserts value is string;
export declare function isEvalArray(value: unknown): value is unknown[];
export declare function normalizeEvalStringList(value: unknown, label: string): string[];
export declare function assertFiniteEvalNumber(value: unknown, label: string, options?: {
    integer?: boolean;
    min?: number;
    max?: number;
}): asserts value is number;
export declare function assertEvalTimerDuration(value: unknown, label: string, options?: {
    min?: number;
}): asserts value is number;
export declare function normalizeEvalExamples(examples: readonly EvalExampleInput[], source: string): EvalExample[];
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