/// <reference types="node" />
export declare const DB_KEY_BLOCKS_ID = "blocks:id";
export declare const DB_KEY_BLOCKS_HEIGHT = "blocks:height";
export declare const DB_KEY_TRANSACTIONS_BLOCK_ID = "transactions:blockID";
export declare const DB_KEY_TRANSACTIONS_ID = "transactions:id";
export declare const DB_KEY_LEGACY_BRACKET: Buffer;
export declare const FAILED_SYNC_RETRY_TIMEOUT = 12000;
export declare const SUCCESS_SYNC_RETRY_TIMEOUT = 5000;
export declare const MAX_FAILED_ATTEMPTS = 10;
export declare const ENGINE_LEGACY_MODULE_NAME = "legacy";
export declare const LOG_OBJECT_ENGINE_LEGACY_MODULE: {
    engineModule: string;
};