import { IBehavior } from 'azure-devops-ui/Utilities/Behavior';
import { IEventDispatch } from 'azure-devops-ui/Utilities/Dispatch';
import { ITreeProps, ITree, Tree } from 'azure-devops-ui/TreeEx';
import { sortDelegate } from 'azure-devops-ui/Table';
export declare class TreeColumnSorting<T> implements IBehavior<ITreeProps<T>, ITree<T>> {
    private onSort;
    private props;
    constructor(onSort: sortDelegate);
    initialize: (props: Readonly<ITreeProps<T>>, table: Tree<T>, eventDispatch: IEventDispatch) => void;
    private onClick;
    private onKeyDown;
    private processSortEvent;
}