code: 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);
      }
docs: Finds an Object of the specified type.
  
  @param <T>       Object type.
  @param classType The class of type T.
  @param id        The document _id field.
  @param rev       The document _rev field.
  @return An object of type T.
  @throws NoDocumentException If the document is not found in the database.