Is it possible post a slide in slider by code?

I’d like to post a slide in slider by code.
(or csv import: Really CSV Importer Media Plus)

for example:

$my_post = array(
  'post_type'    => 'attachment',
  'post_status'   => 'publish',
  'post_author'   => 1,
  'post_attachement' => {slider image url or wp path},
  'post_parent' => {slider's post_id},
);

// post
wp_insert_post( $my_post );

image is here.
https://www.dropbox.com/s/04apeotpjhdq4xw/slide.png?dl=0

How can I post a slide in slider by code?

https://wordpress.org/plugins/ml-slider/