export interface ProvenanceCheckResult {
    ok: boolean;
    found: {
        versionResolvable: boolean;
        hasProvenance: boolean;
        hasRegistrySignature: boolean;
        repositoryUrl?: string;
    };
    expectedRepo: string;
    reasons: string[];
}
export declare function verifyNpmProvenance(pkg: string, version: string, expectedRepo: string): Promise<ProvenanceCheckResult>;
export declare function normalizeRepoUrl(url: string | undefined): string | undefined;
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