docs: public ListRetirableGrantsResult withGrants(GrantListEntry... grants) {
          if (this.grants == null) {
              setGrants(new com.amazonaws.internal.SdkInternalList<GrantListEntry>(grants.length));
          }
          for (GrantListEntry ele : grants) {
              this.grants.add(ele);
          }
          return this;
      }