* that is how the signature looked even prior to this comment! So naturally any change can break
 * existing users, but it can't *fix* existing users because any users who needed
 * `Function<@Nullable A, @Nullable B>` already had to find a workaround. Still, there is a *ton* of
 * fallout from trying to switch. I would be shocked if the switch would offer benefits to anywhere

      return tailMap(fromKey, true);
    }

    @GwtIncompatible @J2ktIncompatible private static final long serialVersionUID = 0;
  }

  @GwtIncompatible // works but is needed only for NavigableMap
  private static <K extends @Nullable Object, V extends @Nullable Object>
      Map.@Nullable Entry<K, V> nullableSynchronizedEntry(
          Map.@Nullable Entry<K, V> entry, @Nullable Object mutex) {

	if errors.Is(err, errDiskFull) || isSysErrNoSpace(err) {
		if recursive {
			err = removeAll(filePath)
		} else {
			err = Remove(filePath)
		}
		return err // Avoid the immediate purge since not needed
	}

	if err != nil {
		return err
	}

	if !immediatePurge && s.diskAlmostFilled() {
		immediatePurge = true
	}

	// immediately purge the target
	if immediatePurge {

///

## Install Packages { #install-packages }

After activating the environment, you can install packages in it.

/// tip

Do this **once** when installing or upgrading the packages your project needs.

If you need to upgrade a version or add a new package you would **do this again**.

///

### Install Packages Directly { #install-packages-directly }

Used by FastAPI:

* [`uvicorn`](https://www.uvicorn.dev) - for the server that loads and serves your application. This includes `uvicorn[standard]`, which includes some dependencies (e.g. `uvloop`) needed for high performance serving.
* `fastapi-cli[standard]` - to provide the `fastapi` command.
    * This includes `fastapi-cloud-cli`, which allows you to deploy your FastAPI application to [FastAPI Cloud](https://fastapicloud.com).

Used by FastAPI:

* [`uvicorn`](https://www.uvicorn.dev) - for the server that loads and serves your application. This includes `uvicorn[standard]`, which includes some dependencies (e.g. `uvloop`) needed for high performance serving.
* `fastapi-cli[standard]` - to provide the `fastapi` command.
    * This includes `fastapi-cloud-cli`, which allows you to deploy your FastAPI application to [FastAPI Cloud](https://fastapicloud.com).

       *
       * - CustomScheduler.service contains an instance of ServiceDelegate. (It needs it so that it
       *   can call notifyFailed.)
       *
       * - ServiceDelegate.runningTask contains an instance of ReschedulableCallable (at least in
       *   the case that the service is using CustomScheduler). (It needs it so that it can cancel
       *   the task and detect whether it has been cancelled.)
       *

      return tailMap(fromKey, true);
    }

    @GwtIncompatible @J2ktIncompatible private static final long serialVersionUID = 0;
  }

  @GwtIncompatible // works but is needed only for NavigableMap
  private static <K extends @Nullable Object, V extends @Nullable Object>
      Map.@Nullable Entry<K, V> nullableSynchronizedEntry(
          Map.@Nullable Entry<K, V> entry, @Nullable Object mutex) {

 * that is how the signature looked even prior to this comment! So naturally any change can break
 * existing users, but it can't *fix* existing users because any users who needed
 * `Function<@Nullable A, @Nullable B>` already had to find a workaround. Still, there is a *ton* of
 * fallout from trying to switch. I would be shocked if the switch would offer benefits to anywhere

      return this;
    }
  }

  @SuppressWarnings("unchecked") // this method may throw CCE
  static int compareOrThrow(Comparable left, Comparable right) {
    return left.compareTo(right);
  }

  /** Needed to serialize sorted collections of Ranges. */
  private static final class RangeLexOrdering extends Ordering<Range<?>> implements Serializable {
    static final Ordering<?> INSTANCE = new RangeLexOrdering();

    @Override