/*!
* Copyright (c) Microsoft Corporation.
* Licensed under the MIT License.
*/
import { SandDance } from '@msrvida/sanddance-react';
import { Transforms } from 'vega-typings/types';
import { BackgroundImageColumnBound } from './interfaces';
import TotalStyle = SandDance.specs.TotalStyle;
export declare function ensureColumnsExist(insightColumns: SandDance.specs.InsightColumns, actualColumns: SandDance.types.Column[], transform: Transforms[]): void;
export declare function ensureColumnsPopulated(chart: SandDance.specs.Chart, totalStyle: TotalStyle, insightColumns: SandDance.specs.InsightColumns, actualColumns: SandDance.types.Column[]): string[];
export declare function getTreemapColumn(columns: SandDance.types.Column[]): SandDance.types.Column;
export declare function colorMapping(insight: SandDance.specs.Insight, columns: SandDance.types.Column[]): SandDance.types.Column;
export declare function getBackgroundImageColumnBounds(columns: SandDance.types.Column[]): BackgroundImageColumnBound[];