* Handler classes in subpackages and registering them as web or file protocols
     * based on their PROTOCOL_TYPE field.
     *
     * @param basePackage the base package to scan for protocol handlers
     */
    protected void loadProtocols(final String basePackage) {
        final List<String> subPackages = new ArrayList<>();
        final String path = basePackage.replace('.', '/');

      <plugin>
        <artifactId>maven-javadoc-plugin</artifactId>
        <configuration>
          <!-- Passing `-subpackages com.google.common` breaks things, so we explicitly exclude everything else instead. -->
          <!-- excludePackageNames requires specification of packages separately from "all subpackages".
               https://issues.apache.org/jira/browse/MJAVADOC-584 -->
          <excludePackageNames>

        }

        private static String getPackageName(Path path) {
            List<String> subpackages = new ArrayList<>();
            for (int i = 0; i < path.getNameCount() - 1; ++i) {
                subpackages.add(path.getName(i).toString());
            }
            return String.join(".", subpackages);
        }

        private String formatDependency(File dependencyFile) {

│   └── routers          # "routers" is a "Python subpackage"
│   │   ├── __init__.py  # makes "routers" a "Python subpackage"
│   │   ├── items.py     # "items" submodule, e.g. import app.routers.items
│   │   └── users.py     # "users" submodule, e.g. import app.routers.users
│   └── internal         # "internal" is a "Python subpackage"
│       ├── __init__.py  # makes "internal" a "Python subpackage"

│   └── routers          # "routers" ist ein "Python-Subpackage"
│   │   ├── __init__.py  # macht "routers" zu einem "Python-Subpackage"
│   │   ├── items.py     # "items"-Submodul, z. B. import app.routers.items
│   │   └── users.py     # "users"-Submodul, z. B. import app.routers.users
│   └── internal         # "internal" ist ein "Python-Subpackage"
│       ├── __init__.py  # macht "internal" zu einem "Python-Subpackage"

│   └── routers          # "routers" bir "Python subpackage"idir
│   │   ├── __init__.py  # "routers"ı bir "Python subpackage" yapar
│   │   ├── items.py     # "items" submodule'ü, örn. import app.routers.items
│   │   └── users.py     # "users" submodule'ü, örn. import app.routers.users
│   └── internal         # "internal" bir "Python subpackage"idir
│       ├── __init__.py  # "internal"ı bir "Python subpackage" yapar

				stdPackages = append(stdPackages, ip)
			}
			importDir[pkg.ImportPath] = pkg.Dir
			if len(pkg.ImportMap) > 0 {
				importMap[pkg.Dir] = make(map[string]string, len(pkg.ImportMap))
			}
			for k, v := range pkg.ImportMap {
				importMap[pkg.Dir][k] = v
			}
		}

		slices.Sort(stdPackages)
		imports = listImports{
			stdPackages: stdPackages,
			importMap:   importMap,

* `app/routers/` 하위 디렉터리가 있고, 여기에 또 `__init__.py` 파일이 있으므로 "Python subpackage"입니다: `app.routers`.
* `app/routers/items.py` 파일은 `app/routers/` package 안에 있으므로, submodule입니다: `app.routers.items`.
* `app/routers/users.py`도 동일하게 또 다른 submodule입니다: `app.routers.users`.
* `app/internal/` 하위 디렉터리도 있고 여기에 `__init__.py`가 있으므로 또 다른 "Python subpackage"입니다: `app.internal`.
* 그리고 `app/internal/admin.py` 파일은 또 다른 submodule입니다: `app.internal.admin`.