export type Options = { /** Whether to validate the SVG as proper XML. Turning this off can improve performance significantly. @default true */ validate?: boolean; }; /** Check if a string is [SVG](https://en.wikipedia.org/wiki/Scalable_Vector_Graphics). @example ``` import isSvg from 'is-svg'; isSvg(''); //=> true ``` */ export default function isSvg(string: string, options?: Options): boolean;