import { LooseObject } from '@antv/component';
import { ChartConfig } from '../interfaces';
export declare const getFixedFieldY: (y: string) => string;
export declare const getSingleData: (data: LooseObject[], config?: ChartConfig | undefined) => {
    source: LooseObject[];
    covert: LooseObject[];
    texts: string[];
    elementCount: number;
    isGroup: boolean;
};
export declare const getGroupData: (data: LooseObject[], config: ChartConfig) => {
    source: LooseObject[];
    covert: LooseObject[];
    texts: never[];
    isGroup: boolean;
};