/**
 * Update Feature Flag Service
 * Updates an existing feature flag
 */
import { type ServiceOptions, type UpdateFlagRequest, type UpdateFlagResponse } from '@plyaz/types/api';
import type { EndpointsList } from '@/api/endpoints';
import type { FetchResponse } from 'fetchff';
/**
 * Request payload for updateFeatureFlag
 */
export interface UpdateFeatureFlagPayload<TKey extends string = string> {
    key: TKey;
    data: UpdateFlagRequest;
}
/**
 * Update an existing feature flag
 * Uses endpoint: PUT /feature-flags/:key
 *
 * @param payload - Flag key and update data
 * @param options - Optional service options
 * @returns Promise<UpdateFlagResponse>
 *
 * @example
 * ```typescript
 * await updateFeatureFlag({
 *   key: 'new-dashboard',
 *   data: {
 *     name: 'Updated Dashboard',
 *     isEnabled: false
 *   }
 * });
 * ```
 */
export declare function updateFeatureFlag<TKey extends string = string, TEndpoints = EndpointsList>(payload: UpdateFeatureFlagPayload<TKey>, options?: ServiceOptions<TEndpoints>): Promise<FetchResponse<UpdateFlagResponse<TKey>>>;
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