import type { IActivityHandler } from "../../IActivityHandler";
/** Defines inputs for the Difference activity. This activity relies on the geometry engine. */
export interface DifferenceEngineTaskInputs {
    geometry: __esri.GeometryUnion | __esri.GeometryUnion[];
    subtractor: __esri.GeometryUnion;
    symmetric: boolean;
}
/** Defines outputs for the Difference activity. */
export interface DifferenceEngineTaskOutputs {
    /** @description The first difference result. */
    geometry: __esri.Geometry | null | undefined;
    /** @description The difference results. */
    results: (__esri.Geometry | null | undefined)[];
}
export declare class DifferenceEngineTask implements IActivityHandler {
    static readonly action = "gcx:wf:arcgis::DifferenceEngineTask";
    static readonly suite = "gcx:wf:builtin";
    execute(inputs: DifferenceEngineTaskInputs): DifferenceEngineTaskOutputs;
    private executeUsing;
}