import { SplunkPalette, IKeyValues, ThemeTypes } from './constants';
declare class VisualizationUtils {
    escapeHtml(inputString: string): string;
    makeSafeUrl(inputUrl: string): string;
    getColorPalette(palette: SplunkPalette, theme: ThemeTypes): string[];
    getCurrentTheme(): ThemeTypes;
    private isValidIsoTime;
    private getTimezoneString;
    private isoToDateObject;
    parseTimestamp(timestamp: string): Date;
    private isTrueEquivalent;
    private isFalseEquivalent;
    normalizeBoolean(value: any, options?: IKeyValues): boolean;
}
declare const _default: VisualizationUtils;
export default _default;