relationships/"><code>Relationships</code></a>, <a href="/api/queries/interfaces/queries/queries/"><code>Queries</code></a>, <a href="/api/checkpoints/interfaces/checkpoints/checkpoints/"><code>Checkpoints</code></a>, <a href="/api/the-essentials/persisting-stores/persister/"><code>Persister</code></a>, and <a href="/api/the-essentials/synchronizing-stores/synchronizer/"><code>Synchronizer</code></a> objects can be passed into the context of an application and used throughout. One of each type of object can