export declare const STAKEHOLDER_AFFILIATIONS: readonly ["client", "internal", "partner", "unknown"];
export type StakeholderAffiliation = (typeof STAKEHOLDER_AFFILIATIONS)[number];
/** Normalize and validate an email domain without retaining a local part. */
export declare function normalizeEmailDomain(value: string | undefined): string | undefined;
export declare function emailDomainFromAddress(value: string | undefined): string | undefined;
export declare function emailDomainsInText(value: string): string[];
/** Keep provenance useful while preventing full participant addresses from entering durable claims. */
export declare function redactEmailAddresses(value: string): string;
export declare function stakeholderAffiliation(params: {
    stakeholderEmailDomain?: string;
    userEmailDomain?: string | null;
    /** Source-declared fallback. Domain comparison still decides client/internal when possible. */
    explicitAffiliation?: StakeholderAffiliation;
}): StakeholderAffiliation;
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