docs: def create_issue_link_type(self, link_type_name, inward, outward):
          """Create a new issue link type.
          :param outward:
          :param inward:
          :param link_type_name:
          :return:
          """
          if link_type_name.lower() in [x.lower() for x in self.get_issue_link_types_names()]:
              log.error("Link type name already exists")
              return "Link type name already exists"
          data = {
              'name': link_type_name,
              'inward': inward,
              'outward': outward
          }
          return self.create_issue_link_type_by_json(data=data)