DefinitelyTyped/types/svg-sprite-loader/plugin.d.ts

import { Plugin } from 'webpack';

export = SVGSpriteLoaderPlugin;

declare class SVGSpriteLoaderPlugin extends Plugin {
	constructor(options?: SVGSpriteLoaderPlugin.Options);
}

declare namespace SVGSpriteLoaderPlugin {
  interface Options {
    /** Render plain sprite without styles and usages */
    plainSprite?: boolean;
    /** Custom tag attributes for the svg */
    spriteAttrs?: {[key: string]: any};
  }
}