Function isRadiusTuple

src/renderers/createPieRenderer.ts:99–101

(
  radius: PieRadius
)

};

const isRadiusTuple = (
  radius: PieRadius
): radius is readonly [inner: number | string, outer: number | string] => Array.isArray(radius);

const resolveRadiiCss = (
  radius: PieRadius | undefined,