import { type AutoScalingClient } from '@aws-sdk/client-auto-scaling';
export declare function getAutoScalingInstanceLifecycleState({ client, instanceId, signal, }: {
    client: AutoScalingClient;
    instanceId: string;
    signal?: AbortSignal;
}): Promise<string | undefined>;
/**
 * Waits until the instance has entered the termination lifecycle hook's
 * regional `Terminating:Wait` state.
 */
export declare function waitForAutoScalingTerminationLifecycleAction({ client, instanceId, onError, signal, }: {
    client: AutoScalingClient;
    instanceId: string;
    onError?: (error: unknown) => void;
    signal?: AbortSignal;
}): Promise<void>;
/**
 * Completes a termination lifecycle action, retrying until the action succeeds,
 * has already proceeded, or the operation is aborted.
 *
 * Callers should first verify that the instance has reached `Terminating:Wait`.
 * The lifecycle state can become visible before the action is accepted by
 * `CompleteLifecycleAction`, so a failed completion must not cause the process
 * to exit while the action is still waiting.
 */
export declare function completeAutoScalingTerminationLifecycleAction({ client, autoScalingGroupName, instanceId, lifecycleHookName, onError, signal, }: {
    client: AutoScalingClient;
    autoScalingGroupName: string;
    instanceId: string;
    lifecycleHookName: string;
    onError?: (error: unknown) => void;
    signal?: AbortSignal;
}): Promise<'completed' | 'already-resolved'>;
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