import type { DbOperation } from './types.ts';
interface ValidateSessionResult {
    valid: boolean;
    user_id?: number;
    username?: string;
    session_id?: string;
    expires_at?: Date;
}
/**
 * Validate a session ID and return user info if valid
 * @param client Database client
 * @param session_id Session ID to validate
 * @returns Validation result with user info if valid
 */
export declare const validateSession: DbOperation<[string], ValidateSessionResult>;
export {};
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