/**
     * It is implicitly assumed that all the services are NEW and that they will all remain NEW
     * until all the Listeners are installed and {@link #markReady()} is called. It is our caller's
     * responsibility to only call {@link #markReady()} if all services were new at the time this
     * method was called and when all the listeners were installed.
     */

cmdtable = {}
command = registrar.command(cmdtable)
@command(b'goreposum', [], _('url'), norepo=True)
def goreposum(ui, url):
  """
  goreposum computes a checksum of all the named state in the remote repo.
  It hashes together all the branch names and hashes
  and then all the bookmark names and hashes.
  Tags are stored in .hgtags files in any of the branches,
  so the branch metadata includes the tags as well.
  """
  h = hashlib.sha256()

        UpgradeOptions options = getOptions(context);

        // Handle --all option (overrides individual options)
        boolean useAll = options.all().orElse(false);
        if (useAll) {
            return true;
        }

        // Apply default behavior: if no specific options are provided, enable --model
        // OR if all options are explicitly disabled, still apply default behavior

specifics of a local system, we rely on hermetic Python (see
[rules_python](https://github.com/bazelbuild/rules_python)) for all build
and test commands executed via Bazel. This means that your system Python
installation will be ignored during the build and Python interpreter itself
as well as all the Python dependencies will be managed by bazel directly.

### Specifying Python version

This has been mostly done, but there remain a few holdouts (fixing these is out of scope).

To keep the Groovy DSL ergonomic, we generate methods as necessary from the non-Groovy equivalents.

Doing this provides the following specific benefits:
- **Reduce the API surface** - We no longer need to maintain two methods.

 *
 * <h3>All-in-One Option</h3>
 * The {@code --all} option is a convenience flag equivalent to {@code --model 4.1.0 --infer --fix-model --plugins}.
 * It performs a complete upgrade to Maven 4.1.0 with all optimizations, compatibility fixes, and plugin upgrades.
 *
 * <h3>Maven 4 Compatibility Fixes</h3>

	healBuckets := xsync.NewMapOf[string, VolInfo]()

	// lists all unique buckets across drives.
	if err := listAllBuckets(ctx, localDrives, healBuckets, quorum); err != nil {
		return nil, err
	}

	// include deleted buckets in listBuckets output
	deletedBuckets := xsync.NewMapOf[string, VolInfo]()

	if opts.Deleted {
		// lists all deleted buckets across drives.

        /**
         * {@return the list of sub-phases}
         */
        @Nonnull
        List<Phase> phases();

        /**
         * Returns a stream of all phases, including this phase and all nested phases.
         *
         * @return a stream of all phases
         */
        @Nonnull
        Stream<Phase> allPhases();
    }

    /**

That way I could find the best ways to reduce code duplication as much as possible, to have completion everywhere, type and error checks, etc.

All in a way that provided the best development experience for all the developers.

## Requirements { #requirements }

With SQLModel, we can use **inheritance** to **avoid duplicating** all the fields in all the cases.

#### `HeroBase` - the base class { #herobase-the-base-class }

Let's start with a `HeroBase` model that has all the **fields that are shared** by all the models:

* `name`
* `age`

{* ../../docs_src/sql_databases/tutorial002_an_py310.py ln[7:9] hl[7:9] *}