export interface ParsedTokenLimitError {
    currentTokens: number;
    maxTokens: number;
    requestId?: string;
    errorType: string;
    providerID?: string;
    modelID?: string;
}
export interface RetryState {
    attempt: number;
    lastAttemptTime: number;
}
export interface FallbackState {
    revertAttempt: number;
    lastRevertedMessageID?: string;
}
export interface TruncateState {
    truncateAttempt: number;
    lastTruncatedPartId?: string;
}
export interface AutoCompactState {
    pendingCompact: Set<string>;
    errorDataBySession: Map<string, ParsedTokenLimitError>;
    retryStateBySession: Map<string, RetryState>;
    fallbackStateBySession: Map<string, FallbackState>;
    truncateStateBySession: Map<string, TruncateState>;
    compactionInProgress: Set<string>;
}
export declare const RETRY_CONFIG: {
    readonly maxAttempts: 2;
    readonly initialDelayMs: 2000;
    readonly backoffFactor: 2;
    readonly maxDelayMs: 30000;
};
export declare const FALLBACK_CONFIG: {
    readonly maxRevertAttempts: 3;
    readonly minMessagesRequired: 2;
};
export declare const TRUNCATE_CONFIG: {
    readonly maxTruncateAttempts: 10;
    readonly minOutputSizeToTruncate: 1000;
};