How to override default upload plugin in Strapi V4?

Thank you! I did manage to register upload.js function to strapi and it seems to work, but now I’m left with image-manipulation.js file, which I don’t know how to register. I can’t upload any pictures because program crashes when trying to find functions that are defined in image-manipulation.js code. Do you have any idea how do I register that file to strapi?

const {
        getDimensions,
        generateBase64,
        generateThumbnail,
        generateWebpFormat,
        generateResponsiveFormats,
      } = strapi.plugin('upload').service('image-manipulation');

This is the code where I try to access image-manipulation functions.