docs: public <T> T find(Class<T> classType, String id, String rev) {
          assertNotEmpty(classType, "Class");
          assertNotEmpty(id, "id");
          assertNotEmpty(id, "rev");
          final URI uri = new DatabaseURIHelper(dbUri).documentUri(id, "rev", rev);
          return couchDbClient.get(uri, classType);
      }