import type { CircleGraphState, InteractiveGraphState } from "../types";
import type { PerseusGraphType } from "@khanacademy/perseus-core";
export declare function getGradableGraph(state: InteractiveGraphState, initialGraph: PerseusGraphType): PerseusGraphType;
/**
 * determine radius of a circle graph
 *
 * @param graph - the graph object containing the circle
 * @returns the radius of the circle
 */
export declare function getRadius(graph: CircleGraphState): number;