/**
 * State Management Errors
 *
 * Custom error types for state serialization and persistence.
 */
/**
 * Error codes for state management operations.
 */
export declare enum StateErrorCode {
    /** Failed to serialize state to string */
    SERIALIZATION_FAILED = "SERIALIZATION_FAILED",
    /** Failed to deserialize string to state */
    DESERIALIZATION_FAILED = "DESERIALIZATION_FAILED",
    /** Session not found in storage */
    SESSION_NOT_FOUND = "SESSION_NOT_FOUND",
    /** Storage operation failed (I/O, permissions, etc.) */
    STORAGE_ERROR = "STORAGE_ERROR",
    /** State version mismatch (needs migration) */
    VERSION_MISMATCH = "VERSION_MISMATCH",
    /** Invalid state structure */
    INVALID_STATE = "INVALID_STATE",
    /** Session ID format is invalid */
    INVALID_SESSION_ID = "INVALID_SESSION_ID"
}
/**
 * Base error class for state management operations.
 */
export declare class StateError extends Error {
    /**
     * Error code for programmatic handling
     */
    readonly code: StateErrorCode;
    /**
     * Original error that caused this error (if any)
     */
    readonly cause?: Error;
    constructor(message: string, code: StateErrorCode, cause?: Error);
    /**
     * Create a serialization error
     */
    static serialization(message: string, cause?: Error): StateError;
    /**
     * Create a deserialization error
     */
    static deserialization(message: string, cause?: Error): StateError;
    /**
     * Create a session not found error
     */
    static sessionNotFound(sessionId: string): StateError;
    /**
     * Create a storage error
     */
    static storage(message: string, cause?: Error): StateError;
    /**
     * Create a version mismatch error
     */
    static versionMismatch(expected: number, actual: number): StateError;
    /**
     * Create an invalid state error
     */
    static invalidState(message: string): StateError;
    /**
     * Create an invalid session ID error
     */
    static invalidSessionId(sessionId: string): StateError;
}