o365-2.0.3/modules/o365_profile/o365_profile.install

<?php

/**
 * @file
 * Update and install hooks for the O365 profile module.
 */

/**
 * Enable the profile REST module.
 *
 * You can safely disable it if you don't use it.
 */
function o365_profile_update_10000() {
  $moduleHandler = \Drupal::service('module_handler');
  if (!$moduleHandler->moduleExists('o365_profile_rest')) {
    $modules = [
      'o365_profile_rest',
    ];
    \Drupal::service('module_installer')->install($modules);
  }
}