}

  @Override
  public ImmutableSortedSet<K> descendingKeySet() {
    return keySet.descendingSet();
  }

  /**
   * Serialized type for all ImmutableSortedMap instances. It captures the logical contents and they
   * are reconstructed using public factory methods. This ensures that the implementation types
   * remain as implementation details.
   */
  @J2ktIncompatible // serialization

	// size of bucket hash table
	buckHashSize = 179999

	// maxSkip is to account for deferred inline expansion
	// when using frame pointer unwinding. We record the stack
	// with "physical" frame pointers but handle skipping "logical"
	// frames at some point after collecting the stack. So
	// we need extra space in order to avoid getting fewer than the
	// desired maximum number of frames after expansion.

	VREV32	V5.B16, V5.B16                  // a508206e
	VREV64	V2.S2, V3.S2                    // 4308a00e
	VREV64	V2.S4, V3.S4                    // 4308a04e

// logical ops
//
// make sure constants get encoded into an instruction when it could
	AND	R1@>33, R2
	AND	$(1<<63), R1                        // AND	$-9223372036854775808, R1       // 21004192

See <<#project_builddir, the deprecation entry>> for details.

==== `TestLauncher` API no longer ignores build failures

The `TestLauncher` interface is part of the Tooling API, specialized for running tests.
It is a logical extension of the `BuildLauncher` that can only launch tasks.
A discrepancy has been reported in their behavior: if the same failing test is executed, `BuildLauncher` will report a build failure but `TestLauncher` won't.

```
### `-tf-tpu-sharding-identification`

_Identifies and handles inputs/outputs of TPU computation that is sharded across logical cores._

Bubbles up sharding configuration from `cluster_func` regions into
the attributes of `cluster_func`. This is done by parsing the
`XlaSharding` / `TPUPartitionedOutput` / `TPUPartitionedInput` ops inside