How can I remove the 'fill-opacity', 'opacity' attributes?

[imhvost]

Hello. Not sure how to remove unnecessary attributes?
There is no documentation on the use of svgoConfig.
I try like this:

svgSprite: {
    // manipulate module options
    svgoConfig: {
      plugins: [
        {
          name: 'removeAttrs',
          params: {
            attrs: ['fill', 'stroke', 'fill-opacity', 'opacity'],
          },
        },
      ],
    }
  }

But it doesn't seem to work.