code: public CreateIssueParams singleListCustomFields(List<CustomFiledItem> customFiledItemList) {
          for (CustomFiledItem customFiledItem : customFiledItemList) {
              singleListCustomField(customFiledItem);
          }
          return this;
      }
docs: Sets the single list type custom field with Map.
  
  @param customFiledItemList list of the custom field identifiers and custom field item identifier
  @return CreateIssueParams instance