* `datetime.timedelta`:
    * 🐍 `datetime.timedelta`.
    * 📨 & 📨 🔜 🎨 `float` 🌐 🥈.
    * Pydantic ✔ 🎦 ⚫️ "💾 8️⃣6️⃣0️⃣1️⃣ 🕰 ➕ 🔢", <a href="https://docs.pydantic.dev/latest/concepts/serialization/#json_encoders" class="external-link" target="_blank">👀 🩺 🌅 ℹ</a>.
* `frozenset`:
    * 📨 &amp; 📨, 😥 🎏 `set`:
        * 📨, 📇 🔜 ✍, ❎ ❎ &amp; 🏭 ⚫️ `set`.
        * 📨, `set` 🔜 🗜 `list`.

import java.nio.file.Files;
import java.util.Map;
import java.util.Objects;

import org.apache.maven.settings.Settings;
import org.apache.maven.settings.v4.SettingsStaxWriter;

/**
 * Handles serialization of settings into the default textual format.
 *
 * @deprecated since 4.0.0, use {@link SettingsStaxWriter} instead
 */
@Named
@Singleton
@Deprecated(since = "4.0.0")

final class NaturalOrdering extends Ordering<Comparable<?>> implements Serializable {
  static final NaturalOrdering INSTANCE = new NaturalOrdering();

  // TODO: b/287198172 - Consider eagerly initializing these (but think about serialization).
  @LazyInit @CheckForNull private transient Ordering<@Nullable Comparable<?>> nullsFirst;
  @LazyInit @CheckForNull private transient Ordering<@Nullable Comparable<?>> nullsLast;

  @Override

  boolean isPartialView() {
    return forward.isPartialView();
  }

  // redeclare to help optimizers with b/310253115
  @SuppressWarnings("RedundantOverride")
  @Override
  @J2ktIncompatible // serialization
  Object writeReplace() {
    return super.writeReplace();
  }

    throw new UnsupportedOperationException();
  }

  // redeclare to help optimizers with b/310253115
  @SuppressWarnings("RedundantOverride")
  @J2ktIncompatible // serialization
  @Override
  @GwtIncompatible // serialization
  Object writeReplace() {
    return super.writeReplace();
  }

    throw new UnsupportedOperationException();
  }

  // redeclare to help optimizers with b/310253115
  @SuppressWarnings("RedundantOverride")
  @J2ktIncompatible // serialization
  @Override
  @GwtIncompatible // serialization
  Object writeReplace() {
    return super.writeReplace();
  }

    * У запитах та відповідях буде представлений як `float` загальної кількості секунд.
    * Pydantic також дозволяє представляти це як "ISO 8601 time diff encoding", <a href="https://docs.pydantic.dev/latest/concepts/serialization/#json_encoders" class="external-link" target="_blank">більше інформації дивись у документації</a>.
* `frozenset`:
    * У запитах і відповідях це буде оброблено так само, як і `set`:

    }

    private static final long serialVersionUID = 0;
  }

  /**
   * Returns {@link Method} instances for the tests that assume that the inverse will be the same
   * after serialization.
   */
  @J2ktIncompatible
  @GwtIncompatible // reflection
  public static List<Method> getInverseSameAfterSerializingMethods() {
    return Collections.singletonList(getMethod("testInverseSerialization"));
  }

   * were obtained by calling {@code snapshot()} on the same {@link PairedStatsAccumulator} without
   * adding any values in between the two calls, or if one is obtained from the other after
   * round-tripping through java serialization. However, floating point rounding errors mean that it
   * may be false for some instances where the statistics are mathematically equal, including

    * In requests and responses will be represented as a `float` of total seconds.
    * Pydantic also allows representing it as a "ISO 8601 time diff encoding", <a href="https://docs.pydantic.dev/latest/concepts/serialization/#custom-serializers" class="external-link" target="_blank">see the docs for more info</a>.
* `frozenset`:
    * In requests and responses, treated the same as a `set`: