import { VersionUpgrade } from './VersionUpgrade';
import { AdaptableState } from '../AdaptableState/AdaptableState';
import { AdaptableColumnDataType } from '../AdaptableState/Common/AdaptableColumn';
export declare function mapOldTypeToDataType(previousType: string): AdaptableColumnDataType;
export declare class VersionUpgrade20 extends VersionUpgrade {
    migrateState(state: AdaptableState): AdaptableState;
    private migrateLayoutState;
    private migrateColTypeToDataType;
    private migrateSparklineState;
}