* **FastAPI**:
    * Do mesmo modo que Starlette utiliza Uvicorn e não pode ser mais rápido que ele, **FastAPI** utiliza o Starlette, então não tem como ser mais rápido do que o Starlette.

  @CheckForNull
  public K lowerKey(@ParametricNullness K key) {
    return Maps.keyOrNull(lowerEntry(key));
  }

  @Override
  @CheckForNull
  public K floorKey(@ParametricNullness K key) {
    return Maps.keyOrNull(floorEntry(key));
  }

  @Override
  @CheckForNull
  public K ceilingKey(@ParametricNullness K key) {
    return Maps.keyOrNull(ceilingEntry(key));
  }

  @Override
  @CheckForNull

  abstract Map<String, Integer> createUnfiltered();

  public void testFilteredKeysIllegalPut() {
    Map<String, Integer> unfiltered = createUnfiltered();
    Map<String, Integer> filtered = Maps.filterKeys(unfiltered, NOT_LENGTH_3);
    filtered.put("a", 1);
    filtered.put("b", 2);
    assertEquals(ImmutableMap.of("a", 1, "b", 2), filtered);

    try {
      filtered.put("yyy", 3);
      fail();

          - pkg: go.opencensus.io
            desc: "do not use OpenCensus; use OpenTelemetry instead"
          - pkg: golang.org/x/exp/maps
            desc: "do not use golang.org/x/exp/maps; use istio.io/istio/pkg/maps instead"
          - pkg: maps
            desc: "do not use maps; use istio.io/istio/pkg/maps instead"
          - pkg: golang.org/x/exp/slices
            desc: "do not use golang.org/x/exp/slices; use istio.io/istio/pkg/slices instead"

        return new DefaultInputFileChanges(
            Maps.filterKeys(previous, propertyName -> !incrementalInputProperties.containsKey(propertyName)),
            Maps.filterKeys(current, propertyName -> !incrementalInputProperties.containsKey(propertyName))
        );

    }

    @Override

* **FastAPI**:
    * Da mesma forma que o Starlette utiliza o Uvicorn e não consegue ser mais rápido que ele, o **FastAPI** utiliza o Starlette, portanto, ele não consegue ser mais rápido que ele.

    Map<C, V> row = Maps.safeGet(rowMap(), rowKey);
    return row != null && Maps.safeContainsKey(row, columnKey);
  }

  @Override
  @CheckForNull
  public V get(@CheckForNull Object rowKey, @CheckForNull Object columnKey) {
    Map<C, V> row = Maps.safeGet(rowMap(), rowKey);
    return (row == null) ? null : Maps.safeGet(row, columnKey);
  }

  @Override

        return Collections.emptyList();
    }

    /**
     * Maps the descriptor for the given build operation.
     */
    TO createDescriptor(DETAILS details, BuildOperationDescriptor buildOperation, @Nullable OperationIdentifier parent);

    /**
     * Maps the start event for the given build operation.
     */

/**
 * An object representing the differences between two maps.
 *
 * @author Kevin Bourrillion
 * @since 2.0
 */
@DoNotMock("Use Maps.difference")
@GwtCompatible
@ElementTypesAreNonnullByDefault
public interface MapDifference<K extends @Nullable Object, V extends @Nullable Object> {
  /**
   * Returns {@code true} if there are no differences between the two maps; that is, if the maps are
   * equal.
   */
  boolean areEqual();

  @CheckForNull
  public K lowerKey(@ParametricNullness K key) {
    return Maps.keyOrNull(lowerEntry(key));
  }

  @Override
  @CheckForNull
  public K floorKey(@ParametricNullness K key) {
    return Maps.keyOrNull(floorEntry(key));
  }

  @Override
  @CheckForNull
  public K ceilingKey(@ParametricNullness K key) {
    return Maps.keyOrNull(ceilingEntry(key));
  }

  @Override
  @CheckForNull