import { EventNames, LinkedEntityDefinition, memorized, mustBeArray, Service } from "cds-internal-tool";
import type { Migration, MysqlDatabaseOptions } from "./types";
export declare const lazy: {
    /**
     * cds facade
     */
    readonly cds: import("cds-internal-tool").CDS;
    /**
     * cds config
     */
    readonly env: import("cds-internal-tool/lib/types/config").Env;
    /**
     * database options
     */
    readonly db_options: MysqlDatabaseOptions;
    /**
     * logger
     */
    readonly logger: import("cds-internal-tool").Logger;
    readonly BaseService: typeof Service<EventNames, MysqlDatabaseOptions>;
};
/**
 * check cds version, if cds version is not match the `cds-mysql` required version, will throw error
 */
export declare function checkCdsVersion(): void;
/**
 * return last 6 characters of target string
 *
 * @param s
 * @returns
 */
export declare function last6Chars(s: string): string;
export { memorized, mustBeArray };
export declare const getIncrementalKey: ((entityDef: any) => any | undefined) & {
    clear: () => void;
    caches: import("cds-internal-tool/lib/foundation").LRUMap<any, any>;
};
/**
 * check the given entity has `preDelivery` aspect or not
 */
export declare const isPreDeliveryModel: ((entityDef: LinkedEntityDefinition) => boolean) & {
    clear: () => void;
    caches: import("cds-internal-tool/lib/foundation").LRUMap<LinkedEntityDefinition, boolean>;
};
/**
 * migration file generation tool
 */
export declare const migration_tool: {
    stringify(migrations: Array<Migration>): string;
    parse(content: string): Array<Migration>;
};