export declare class Err extends Error {
    inner: Error | undefined;
    constructor(message: string, inner?: Error);
    /**
     * Returns a pretty, friendly summary for the error or for the chain of errros (if appropriate).
     */
    summary(): any[];
}
export declare class ErrInvalidDataField extends Err {
    constructor(message: string);
}
export declare class ErrInvalidAttributesField extends Err {
    constructor(message: string);
}
export declare class ErrInvalidTopicsField extends Err {
    constructor(message: string);
}