docs: def assign_unassigned_members(self, group_category_id, sync=None):
          """
          Assign unassigned members.
  
          Assign all unassigned members as evenly as possible among the existing
          student groups.
          """
          path = {}
          data = {}
          params = {}
  
          # REQUIRED - PATH - group_category_id
          """ID"""
          path["group_category_id"] = group_category_id
  
          # OPTIONAL - sync
          """The assigning is done asynchronously by default. If you would like to
          override this and have the assigning done synchronously, set this value
          to true."""
          if sync is not None:
              data["sync"] = sync
  
          self.logger.debug("POST /api/v1/group_categories/{group_category_id}/assign_unassigned_members with query params: {params} and form data: {data}".format(params=params, data=data, **path))
          return self.generic_request("POST", "/api/v1/group_categories/{group_category_id}/assign_unassigned_members".format(**path), data=data, params=params, single_item=True)