import type { FailurePolicyReason } from './policy';
/** Additional common configuration for making requests. */
export declare type RequestConfiguration = {
    /** Timeout for the request after which the request is aborted and a failure is reported. */
    timeout: number;
};
/**
 * Abort the execution completely.
 *
 * This may be returned from:
 * * `beforeExecute`: For example circuit breaker
 * * `afterFailure`: Circuit breaker, max retries exhausted, etc.
 */
export declare type AbortResolution = {
    kind: 'abort';
    /** Reason why the execution was aborted. */
    reason: FailurePolicyReason;
};
/**
 * Retry the execution, possibly with a backoff.
 *
 * This may be returned from:
 * * `afterFailure`
 */
export declare type RetryResolution = {
    kind: 'retry';
};
/**
 * Backoff the execution.
 *
 * This may be returned from:
 * * `beforeExecution`
 */
export declare type BackoffResolution = {
    kind: 'backoff';
    /** Number of milliseconds to wait until executing */
    backoff: number;
};
/**
 * Recache before executing.
 *
 * This may be returned from:
 * * `beforeExecution`
 */
export declare type RecacheResolution = {
    kind: 'recache';
    /** Optional url to a fallback registry to use for this recache request only */
    newRegistry?: string;
    /** Reason that caused this recache. */
    reason: FailurePolicyReason;
};
/**
 * Switch to a different provider.
 *
 * This may be returned from:
 * * `beforeExecution`: When a failover happens or when going back is to be reattempted.
 */
export declare type SwitchProviderResolution = {
    kind: 'switch-provider';
    provider: string;
    /** Reason that caused this switch. */
    reason: FailurePolicyReason;
};
/**
 * Continue in the current configuration, no changes should be made
 *
 * This may be returned from:
 * * `beforeExecution`
 * * `afterFailure`
 * * `afterSuccess`
 */
export declare type ContinueResolution = {
    kind: 'continue';
};
export declare type ExecutionResolution = (RequestConfiguration & (ContinueResolution | BackoffResolution)) | AbortResolution | RecacheResolution | SwitchProviderResolution;
export declare type FailureResolution = AbortResolution | RetryResolution | ContinueResolution | RecacheResolution | SwitchProviderResolution;
export declare type SuccessResolution = ContinueResolution;