Gulp 4, gulp-imacss and Deprecation Warning, what to do?

Question

Images

I am learning to work with Gulp 4 and tried the 'gulp-imacss' plugin
var imacss = require('gulp-imacss')

var imguri = {
        in: source + 'images/inline/*',
        out: source + 'scss/images/',
        filename: '_datauri.scss',
        namespace: 'img'
};

Next, I create a task to convert images to dataURI

gulp.task('imguri', function () {
    return gulp.src(imguri.in)
        .pipe(imagemin())
        .pipe(imacss(imguri.filename, imguri.namespace))
        .pipe(gulp.dest(imguri.out))
});

launch gulp imguriand receive

Starting 'imguri'...
(node:90037) [DEP0097] DeprecationWarning: Using a domain property in MakeCallback is deprecated. Use the async_context variant of MakeCallback or the AsyncResource class instead.
The following tasks did not complete: imguri
Did you forget to signal async completion?

I do not understand what to do next? Please share your thoughts, or how to replace this plugin