/**
 * Migration error classes.
 */
import type { MigrationBlocker } from "@artu-ai/shared";
import { ComplianceError } from "./base";
/**
 * Thrown when a migration cannot run because resources in the graph lack an
 * externalId. Nothing was written; fix the blockers and retry.
 *
 * @example
 * ```typescript
 * try {
 *   await sdk.clients.migrate(clientId, { to: "live" });
 * } catch (error) {
 *   if (error instanceof MigrationBlockedError) {
 *     for (const blocker of error.blockers) {
 *       console.log(`${blocker.resource} ${blocker.label}: ${blocker.reason}`);
 *     }
 *   }
 * }
 * ```
 */
export declare class MigrationBlockedError extends ComplianceError {
    /**
     * The resources in the graph that prevented the migration. Each lacks an
     * externalId; assign one and retry.
     */
    readonly blockers: MigrationBlocker[];
    constructor(blockers: MigrationBlocker[]);
}