/**
 * Circular layout algorithm
 */
import { Graph, PositionMap } from "../../types";
/**
 * Position nodes on a circle (2D) or sphere (3D).
 * @param G - Graph or list of nodes
 * @param scale - Scale factor for positions
 * @param center - Coordinate pair around which to center the layout
 * @param dim - Dimension of layout (supports 2D circle or 3D sphere)
 * @returns Positions dictionary keyed by node
 */
export declare function circularLayout(G: Graph, scale?: number, center?: number[] | null, dim?: number): PositionMap;
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