import type { IActivityHandler } from "../../IActivityHandler";
/** Defines inputs for the Relate activity. This activity relies on the geometry engine. */
export interface RelateEngineTaskInputs {
    geometry1: __esri.GeometryUnion;
    geometry2: __esri.GeometryUnion;
    relations: string | string[];
}
/** Defines outputs for the Relate activity. */
export interface RelateEngineTaskOutputs {
    /** @description Returns true if the relation holds on the input geometries. */
    incident?: boolean;
    /** @description Returns an array of values that indicate what aspects of the relation hold. */
    incidents?: boolean[];
}
export declare class RelateEngineTask implements IActivityHandler {
    static readonly action = "gcx:wf:arcgis::RelateEngineTask";
    static readonly suite = "gcx:wf:builtin";
    execute(inputs: RelateEngineTaskInputs): Promise<RelateEngineTaskOutputs>;
}