{* ../../docs_src/sql_databases/tutorial001_an_py310.py ln[40:45] hl[40:45] *}

Here we use the `SessionDep` dependency (a `Session`) to add the new `Hero` to the `Session` instance, commit the changes to the database, refresh the data in the `hero`, and then return it.

### Read Heroes { #read-heroes }

We can **read** `Hero`s from the database using a `select()`. We can include a `limit` and `offset` to paginate the results.

      Map<K, V> map = new HashMap<K, V>();
      for (K key : keys) {
        map.put(key, localCache.getOrLoad(key));
      }
      return ImmutableMap.copyOf(map);
    }

    @Override
    public void refresh(K key) {
      throw new UnsupportedOperationException();
    }
  }

  /**
   * LinkedHashMap that enforces it's maximum size and logs events in a StatsCounter object and an
   * optional RemovalListener.

      LocalCache<String, String> cache = makeLocalCache(builder, loader);

      assertThat(cache.getOrLoad("test")).isEqualTo("testLoad");

      ticker.advance(10, MILLISECONDS); // so that the next call will trigger refresh
      assertThat(cache.getOrLoad("test")).isEqualTo("testLoad");
      reloadStarted.await();
      ticker.advance(500, MILLISECONDS); // so that the entry expires during the reload

      LocalCache<String, String> cache = makeLocalCache(builder, loader);

      assertThat(cache.getOrLoad("test")).isEqualTo("testLoad");

      ticker.advance(10, MILLISECONDS); // so that the next call will trigger refresh
      assertThat(cache.getOrLoad("test")).isEqualTo("testLoad");
      reloadStarted.await();
      ticker.advance(500, MILLISECONDS); // so that the entry expires during the reload

    }

    /**
     * If the delegate collection is empty, but the multimap has values for the key, replace the
     * delegate with the new collection for the key.
     *
     * <p>For a subcollection, refresh its ancestor and validate that the ancestor delegate hasn't
     * changed.
     */
    void refreshIfEmpty() {
      if (ancestor != null) {
        ancestor.refreshIfEmpty();

        data.put("userProperties", cliRequest.userProperties);
        data.put("versionProperties", CLIReportingUtils.getBuildProperties());
        eventSpyDispatcher.init(eventSpyContext);

        // refresh logger in case container got customized by spy
        slf4jLogger = slf4jLoggerFactory.getLogger(this.getClass().getName());

        maven = container.lookup(Maven.class);

* With this PR, kubectl and other RestClient's using the AuthProvider framework can make OIDC authenticated requests, and, if there is a refresh token present, the tokens will be refreshed as needed. ([#25270](https://github.com/kubernetes/kubernetes/pull/25270), [@bobbyrullo](https://github.com/bobbyrullo))

* client-go: shortens refresh period for token files to 1 minute to ensure auto-rotated projected service account tokens are read frequently enough. ([#72437](https://github.com/kubernetes/kubernetes/pull/72437), [@liggitt](https://github.com/liggitt))

* Fix AWS NLB security group updates where valid security group ports were incorrectly removed ([#68422](https://github.com/kuber...

  
  ### AWS
  - Regenerate list of EC2 instances
  - Fix pricing endpoint in AWS China Region
  
  ### Azure
  - Add optional jitter on initial VMSS VM cache refresh, keep the refreshes spread over time
  - Serve from cache for the whole period of ongoing throttling
  - Fix unwanted VMSS VMs cache invalidation
  - Enforce setting the number of retries if cloud provider backoff is enabled