export interface ParsedScopeKey {
    kind: 'tenant' | 'agent' | 'user' | 'custom';
    id?: string;
    period?: string;
    raw: string;
}
/**
 * Parse a scope key into its structured components.
 *
 * Recognized patterns:
 *   tenant:<id>:day:YYYY-MM-DD
 *   tenant:<id>:hour:YYYY-MM-DDTHH:00Z
 *   tenant:<id>:month:YYYY-MM
 *   agent:<id>:day:YYYY-MM-DD
 *   agent:<id>:hour:YYYY-MM-DDTHH:00Z
 *   agent:<id>:month:YYYY-MM
 *   user:<id>:day:YYYY-MM-DD
 *   user:<id>:hour:YYYY-MM-DDTHH:00Z
 *   user:<id>:month:YYYY-MM
 *
 * Unknown prefixes fall back to `kind: 'custom'` with `raw: scopeKey`.
 * Returns `undefined` for empty strings.
 */
export declare function parseScopeKey(scopeKey: string): ParsedScopeKey | undefined;
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