import type { EvaluationCandidateIdentity, EvaluationEnvironmentIdentity, EvaluationScenario, JsonValue } from "./types.js";
export declare function stableStringify(value: unknown): string;
export declare function sha256(value: string | Uint8Array): string;
export declare function hashJson(value: JsonValue | unknown): string;
export declare function scenarioContentHash(scenario: EvaluationScenario): string;
export declare function createEnvironmentIdentity(fixtureHash: string, overrides?: Partial<EvaluationEnvironmentIdentity>): EvaluationEnvironmentIdentity;
export declare function createCandidateIdentity(input?: Partial<EvaluationCandidateIdentity>): EvaluationCandidateIdentity;
export declare function hasExplicitLiveOptIn(options: {
    mode?: string;
    live?: boolean;
    confirmed?: boolean;
    budget?: {
        maximumCostUsd?: number;
        maximumModelCalls?: number;
        maximumWallTimeMs?: number;
    };
}): boolean;
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