Remove co_black,e_colorize:70 from Cloudinary

When I fetch image data using admin.search, all the image urls has co_black,e_colorize:70 which makes the image darker. I did not gave any transformation options when I both instantiate and send request. How do i remove this option without running string methods?

Init part:

var (
    CLD     *cloudinary.Cloudinary
    CLD_CTX context.Context
)
func InitCldInstance() {
cld, _ := cloudinary.New()
cld.Config.URL.Secure = true
ctx := context.Background()
CLD = cld
CLD_CTX = ctx
}
func GetInstance() (*cloudinary.Cloudinary, context.Context) {
if CLD == nil {
panic("cloudinary not initialized")
}
return CLD, CLD_CTX
}

Request part:

func (r *MediaRepository) GetAllImagesFromFolder(
    ctx context.Context,
    folder string,
    limit int,
    nextCursor string,
) (AllImagesFromFolder, error) {
    var result AllImagesFromFolder
res, err := r.cld.Admin.Search(ctx, search.Query{
Expression: "folder:gallery/" + folder,
MaxResults: limit,
NextCursor: nextCursor,
SortBy: []search.SortByField{
{
"created_at": search.Direction("desc"),
},
},
})
if err != nil {
logger.Error.Printf("Get image from folder error: %v", err.Error())
return result, fmt.Errorf("Get image from folder error: %v", err.Error())
}
images := make([]Image, len(res.Assets))
for i, asset := range res.Assets {
images[i] = Image{
PublicID: asset.PublicID,
Url:      asset.SecureURL,
}
}
result.Images = images
result.NextCursor = res.NextCursor
return result, nil
}

Fontend part(react):

   const renderImages = () => {
      return images.map((item) => {
         const img = cld
            .image(item.publicId)
            .format("auto")
            .quality("auto")
            .resize(fit().width(450))
return (
<AdvancedImage
key={item.publicId}
cldImg={img}
plugins={[lazyload(), responsive(), accessibility()]}
/>
);
});
};