import { ToolPanelContextChangedEventArgs as ToolPanelContextChangedEventArgs_internal } from "./ToolPanelContextChangedEventArgs";
export declare class IgxToolPanelContextChangedEventArgs {
    protected createImplementation(): ToolPanelContextChangedEventArgs_internal;
    protected _implementation: any;
    /**
     * @hidden
     */
    get i(): ToolPanelContextChangedEventArgs_internal;
    private onImplementationCreated;
    constructor();
    protected _provideImplementation(i: any): void;
    get contextKey(): string;
    set contextKey(v: string);
    get oldValue(): any;
    set oldValue(v: any);
    get newValue(): any;
    set newValue(v: any);
}