How to make custom generated sprite names? about webpack-spritesmith HOT 3 CLOSED

new SpritesmithPlugin({
            src: {
                cwd: path.resolve(__dirname, 'src/assets/spritesheets/'),
                glob: '**/*/*.png'
            },
            target: {
                image: path.resolve(__dirname, 'dist/assets/spritesheets/sprite.png'),
                css: [
                    [path.resolve(__dirname, 'dist/assets/spritesheets/sprite.json'), {
                        format: 'json_texture'
                    }]
                ]
            },
            apiOptions: {
                cssImageRef: "sprite.png",
                generateSpriteName: fullPathToSourceFile => {
                    const {name} = path.parse(fullPathToSourceFile);
                    return `sprite_${name}`;
                }
            }
        }),