import { type PackageInRegistry, type PackageMeta } from '@pnpm/registry.types';
import { type PackageVersionPolicy } from '@pnpm/types';
type TrustEvidence = 'provenance' | 'trustedPublisher';
export declare function failIfTrustDowngraded(meta: PackageMeta, version: string, opts?: {
    trustPolicyExclude?: PackageVersionPolicy;
    trustPolicyIgnoreAfter?: number;
}): void;
export declare function getTrustEvidence(manifest: PackageInRegistry): TrustEvidence | undefined;
export {};