import type { BaseSeriesModel, BreakoutSeriesModel, CategoryXAxisModel, NumericXAxisModel, TimeSeriesInterval, TimeSeriesXAxisModel, XAxisModel } from "./types";
export declare const isTimeSeriesAxis: (axisModel: XAxisModel) => axisModel is TimeSeriesXAxisModel;
export declare const isNumericAxis: (axisModel: XAxisModel) => axisModel is NumericXAxisModel;
export declare const isCategoryAxis: (axisModel: XAxisModel) => axisModel is CategoryXAxisModel;
export declare const isBreakoutSeries: (seriesModel: BaseSeriesModel) => seriesModel is BreakoutSeriesModel;
export declare const isQuarterInterval: (interval: TimeSeriesInterval) => boolean;
