io-8.x-1.x-dev/modules/io_browser/io_browser.services.yml

services:
  io_browser:
    class: Drupal\io_browser\IoBrowser
    arguments: ['@io.manager', '@blazy.admin.formatter', '@blazy.entity', '@blazy.formatter']

  io_browser.alter:
    class: Drupal\io_browser\IoBrowserAlter
    arguments: ['@io_browser']

  io_browser.widget:
    class: Drupal\io_browser\IoBrowserWidget
    parent: io_browser.alter