*
         * See [PropertiesUtils.store].
         */
        fun store(data: Map<String, Any>, file: File, comment: String? = null) {
            store(propertiesFrom(data), file, comment)
        }

        /**
         * Writes [Properties] to a file, but without including the timestamp comment.
         *
         * See [PropertiesUtils.store].
         */

    void addScopeInternal(String scope) {
        if (Artifact.SCOPE_COMPILE.equals(scope)) {
            systemScope = true;
            providedScope = true;
            compileScope = true;
        } else if (Artifact.SCOPE_RUNTIME.equals(scope)) {
            compileScope = true;
            runtimeScope = true;
        } else if (Artifact.SCOPE_COMPILE_PLUS_RUNTIME.equals(scope)) {
            systemScope = true;

It's relatively tightly coupled with relational databases (like MySQL or PostgreSQL), so, having a NoSQL database (like Couchbase, MongoDB, Cassandra, etc) as the main store engine is not very easy.

      <artifactId>t05-c</artifactId>
      <version>1.0</version>
      <type>jar</type>
      <scope>compile</scope>
    </dependency>
    <dependency>
      <groupId>maven-test</groupId>
      <artifactId>t05-d</artifactId>
      <version>1.1</version>
      <type>jar</type>
      <scope>compile</scope>
      <optional>false</optional>
    </dependency>
  </dependencies>

      <artifactId>t08-c</artifactId>
      <version>1.0</version>
      <type>jar</type>
      <scope>compile</scope>
    </dependency>
    <dependency>
      <groupId>maven-test</groupId>
      <artifactId>t08-d</artifactId>
      <version>1.1</version>
      <type>jar</type>
      <scope>compile</scope>
      <optional>false</optional>
    </dependency>
  </dependencies>

        return classpathTransformation.transform(dirtyGraph, scope, false);
    }

    // ----------------------------------------------------------------------------
    public MetadataTreeNode getClasspathTree(ArtifactScopeEnum scope)
            throws MetadataGraphTransformationException, MetadataResolutionException {
        ClasspathContainer cpc = getClasspath(scope);
        if (cpc == null) {
            return null;

		t.Errorf("Test %d: service mismatch:Expected \"%s\", got \"%s\"", testNum, expectedCredentials.scope.service, actualCredential.scope.service)
	}

	if expectedCredentials.scope.request != actualCredential.scope.request {
		t.Errorf("Test %d: scope request mismatch:Expected \"%s\", got \"%s\"", testNum, expectedCredentials.scope.request, actualCredential.scope.request)
	}
}

    <dependency>
      <groupId>maven-test</groupId>
      <artifactId>t05-a</artifactId>
      <version>1.0</version>
      <scope>runtime</scope>
    </dependency>
    <dependency>
      <groupId>maven-test</groupId>
      <artifactId>t05-c</artifactId>
      <version>1.0</version>
      <scope>runtime</scope>
    </dependency>
  </dependencies>
  <build>
    <plugins>
      <plugin>

But we also pass a `list` of scopes, in this case with just one scope: `items` (it could have more).

And the dependency function `get_current_active_user` can also declare sub-dependencies, not only with `Depends` but also with `Security`. Declaring its own sub-dependency function (`get_current_user`), and more scope requirements.

In this case, it requires the scope `me` (it could require more than one scope).

/// note

}

// Del - Deletes an entry from the store.
func (store *QueueStore[_]) Del(key Key) error {
	store.Lock()
	defer store.Unlock()
	return store.del(key)
}

// Len returns the entry count.
func (store *QueueStore[_]) Len() int {
	store.RLock()
	l := len(store.entries)
	defer store.RUnlock()
	return l
}

// lockless call
func (store *QueueStore[_]) del(key Key) error {