code: public static BoxRetentionPolicy.Info createIndefinitePolicy(BoxAPIConnection api, String name) {
          return createRetentionPolicy(api, name, TYPE_INDEFINITE, 0, ACTION_REMOVE_RETENTION);
      }
docs: Used to create a new indefinite retention policy.
  @param api the API connection to be used by the created user.
  @param name the name of the retention policy.
  @return the created retention policy's info.