export declare const loadOptionsEnvironment: () => Readonly<{
    [x: string]: any;
    HOST?: string | null | undefined;
    PORT?: string | number | undefined;
    USERNAME?: string | null | undefined;
    PASSWORD?: string | null | undefined;
    DATABASE?: string | null | undefined;
    CONNECTION_LIMIT?: string | number | undefined;
    QUEUE_LIMIT?: string | number | undefined;
    TIMEOUT?: string | number | undefined;
    CHARSET?: string | null | undefined;
    CONNECTION_ERROR?: string | boolean | undefined;
    WAIT_FOR_CONNECTIONS?: string | boolean | undefined;
    DATE_STRINGS?: string | boolean | undefined;
    KEEP_ALIVE_DELAY?: string | number | undefined;
    ENABLE_KEEP_ALIVE?: string | boolean | undefined;
    MULTIPLE_STATEMENTS?: string | boolean | undefined;
    CACHE?: string | null | undefined;
}>;
declare const _default: Readonly<{
    [x: string]: any;
    HOST?: string | null | undefined;
    PORT?: string | number | undefined;
    USERNAME?: string | null | undefined;
    PASSWORD?: string | null | undefined;
    DATABASE?: string | null | undefined;
    CONNECTION_LIMIT?: string | number | undefined;
    QUEUE_LIMIT?: string | number | undefined;
    TIMEOUT?: string | number | undefined;
    CHARSET?: string | null | undefined;
    CONNECTION_ERROR?: string | boolean | undefined;
    WAIT_FOR_CONNECTIONS?: string | boolean | undefined;
    DATE_STRINGS?: string | boolean | undefined;
    KEEP_ALIVE_DELAY?: string | number | undefined;
    ENABLE_KEEP_ALIVE?: string | boolean | undefined;
    MULTIPLE_STATEMENTS?: string | boolean | undefined;
    CACHE?: string | null | undefined;
}>;
export default _default;