import { Attribute, AttributeValue } from '../model/models/attribute-map.models';
export declare function values<T>(object: {
    [key: string]: T;
}): T[];
export declare function getContrastColor(color: string): string;
export declare function isNumber(value: Attribute): value is number;
export declare function isString(value: Attribute): value is string;
export declare function isStringOrNull(value: Attribute): value is string | null;
export declare function isEmptyObject(value: Record<string, AttributeValue>): boolean;
export declare function isObject(value: Attribute): value is Record<string, AttributeValue>;
export declare function isArrayOrNull(value: Attribute): value is unknown[] | null;
export declare function isArray(value: Attribute): value is unknown[];