Code snippet to replace line 47 of pet.js from `of: [{type: 'block'}, {type: 'image', options: {hotspot: true}}],`

pet-partial.js

      of: [
        {
          type: 'block', 
          marks: {
            annotations: [
              {
                name: 'product',
                type: 'reference',
                to: [
                  {
                    type: 'product'
                  }
                ],
                blockEditor: {
                  icon: PackageIcon,
                  render: ProductRenderer 
                }
              }
            ]
          }
        }, 
        {type: 'image', options: {hotspot: true}}
      ],