result.removeAll(collection);
    return result;
  }

  /**
   * Returns a set backed by the specified map. The resulting set displays the same ordering,
   * concurrency, and performance characteristics as the backing map. In essence, this factory
   * method provides a {@link Set} implementation corresponding to any {@link Map} implementation.

Para produção, você usaria `fastapi run`. 🚀

Internamente, o **FastAPI CLI** usa o <a href="https://www.uvicorn.dev" class="external-link" target="_blank">Uvicorn</a>, um servidor ASGI de alta performance e pronto para produção. 😎

## `fastapi dev` { #fastapi-dev }

Executar `fastapi dev` inicia o modo de desenvolvimento.

## 1. Overview

Directory leasing extends the SMB3 lease concept to directories, enabling client-side caching of directory metadata and change notifications. This significantly improves performance for applications that frequently enumerate directories or monitor directory changes.

## 2. Protocol Specification Reference

- **MS-SMB2 Section 2.2.13.2.12**: SMB2_CREATE_REQUEST_LEASE_V2 for directories

          Function<? super T, ? extends V> valueFunction) {
    return CollectCollectors.toImmutableBiMap(keyFunction, valueFunction);
  }

  /**
   * Returns the empty bimap.
   *
   * <p><b>Performance note:</b> the instance returned is a singleton.
   */
  // Casting to any type is safe because the set will never hold any elements.
  @SuppressWarnings("unchecked")
  public static <K, V> ImmutableBiMap<K, V> of() {

Et c'est le même niveau de performance que celui obtenu avec **FastAPI**.

    private final NetworkInterfaceInfo remoteInterface;
    private volatile ChannelState state;
    private final long establishedTime;
    private volatile long lastActivityTime;
    
    // Performance metrics
    private final AtomicLong bytesSent;
    private final AtomicLong bytesReceived;
    private final AtomicLong requestsSent;
    private final AtomicLong requestsReceived;
    private final AtomicLong errors;

    /**
     * Counter for generating unique session identifiers.
     */
    protected int count = 1;

    /**
     * Cache for storing crawling configurations to improve performance.
     */
    protected Cache<String, CrawlingConfig> crawlingConfigCache;

    /**
     * Initializes the CrawlingConfigHelper by setting up the crawling configuration cache.

      safeMax = Character.MIN_VALUE;
      safeMin = Character.MAX_VALUE;
    }
    this.safeMin = safeMin;
    this.safeMax = safeMax;
  }

  /*
   * This is overridden to improve performance. Rough benchmarking shows that this almost doubles
   * the speed when processing strings that do not require any escaping.
   */
  @Override
  public final String escape(String s) {

then apps are responsible for calling `OkHttp.initialize(applicationContext)` in `Application.onCreate`.

OkHttp depends on [Okio][okio] for high-performance I/O and the [Kotlin standard library][kotlin]. Both are small libraries with strong backward-compatibility.

We highly recommend you keep OkHttp up-to-date. As with auto-updating web browsers, staying current

But it's possible to customize it, you can set a specific CDN, or serve the files yourself.

## Custom CDN for JavaScript and CSS { #custom-cdn-for-javascript-and-css }