/**
 * Shared retry primitives.
 */
import type { ModelRetryStrategy } from './model-retry-strategy.js';
/**
 * Any retry strategy accepted by the agent.
 */
export type RetryStrategy = ModelRetryStrategy;
/**
 * Decision returned by a retry strategy's per-event `compute*RetryDecision` method.
 *
 * Discriminated union: `retry: true` carries the wait duration the framework
 * will sleep for before re-invoking the failed operation. `retry: false`
 * carries nothing — the error propagates to the caller.
 *
 * Shared across retry kinds (model retries today; tool retries and others
 * later) so all strategies speak the same decision shape.
 */
export type RetryDecision = {
    retry: false;
} | {
    retry: true;
    waitMs: number;
};
/**
 * Emit a warning for each duplicate-type retry strategy in the list.
 *
 * Two strategies of the same concrete class share the same `plugin.name`
 * and would otherwise collide in the plugin registry. This is a warning,
 * not an error — the caller decides how to handle duplicates (e.g. keep
 * the first, drop the rest).
 */
export declare function warnOnDuplicateRetryStrategyTypes(strategies: readonly RetryStrategy[]): void;
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