export interface ShapeStyle {
    type?: 'circle' | 'rectangle';
    fill?: string;
    stroke?: string;
    strokeDash?: number[];
    strokeWidth?: number;
}
export interface CircleStyle extends ShapeStyle {
    type: 'circle';
    radius?: number;
}
export interface RectangleStyle extends ShapeStyle {
    type: 'rectangle';
    width?: number;
    height?: number;
}
/**
 * Lazily apply shape attributes to another shape style
 * @param source
 * @param target
 */
declare function applyShapeAttributes(target: ShapeStyle, source: ShapeStyle): void;
/**
 * Lazily apply shape style attributes to another shape style.
 * @param target
 * @param source
 */
declare function applyShapeStyleAttributes(target: ShapeStyle, source: ShapeStyle): void;
/**
 * Create a clone of a shape style
 * @param style
 */
declare function cloneShapeStyle(style: ShapeStyle): ShapeStyle;
declare function convertToShape(style: ShapeStyle, type: 'circle' | 'rectangle' | null): ShapeStyle;
/**
 * Returns true if shape styles are equivalent, false otherwise
 * @param a
 * @param b
 */
declare function equivalentShapeStyles(a: ShapeStyle, b: ShapeStyle): boolean;
/**
 * Returns true if style is a CircleStyle, false otherwise
 * @param style
 */
declare function isCircleStyle(style: ShapeStyle): style is CircleStyle;
/**
 * Returns true is style is a RectangleStyle, false otherwise
 * @param style
 */
declare function isRectangleStyle(style: ShapeStyle): style is RectangleStyle;
export { applyShapeAttributes, applyShapeStyleAttributes, cloneShapeStyle, convertToShape, equivalentShapeStyles, isCircleStyle, isRectangleStyle };