/**
 * `hq promote` command — change an existing member's role (VLT-7 US-003).
 *
 * Admin+ only. Surfaces last-owner demotion errors as human messages.
 */
import type { VaultServiceConfig } from "../types.js";
import type { MembershipRole, Membership } from "../vault-client.js";
export interface PromoteOptions {
    /** Person slug or UID of the member to promote */
    target: string;
    /** New role to assign */
    newRole: MembershipRole;
    /** Allowed prefixes (only valid with guest role) */
    paths?: string;
    /** Company slug or UID */
    company?: string;
    /** Caller's person UID */
    callerUid: string;
    /** Vault service config */
    vaultConfig: VaultServiceConfig;
}
export interface PromoteResult {
    membership: Membership;
    previousRole?: MembershipRole;
}
/**
 * Change a member's role.
 */
export declare function promote(options: PromoteOptions): Promise<PromoteResult>;
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