public class LocalScopeProvider extends ImportedNamespaceAwareLocalScopeProvider {

	protected List<ImportNormalizer> internalGetImportedNamespaceResolvers(final EObject context, boolean ignoreCase) {
		List<ImportNormalizer> resolvers = Lists.newArrayList();

		if (context instanceof Algorithm) {
			Algorithm algorithm = (Algorithm) context;

			// treat namespace declaration as implicit import
			Namespace namespace = algorithm.getNamespace();
			if (namespace != null) {
				String namespaceName = namespace.getName();
				if (namespaceName != null) {
					namespaceName += ".*";
					ImportNormalizer resolver = createImportedNamespaceResolver(namespaceName, ignoreCase);
					if (resolver != null)
						resolvers.add(resolver);
				}
			}

			// add explicit imports
			SimpleAttributeResolver<EObject, String> importResolver = SimpleAttributeResolver.newResolver(String.class,
					"importedNamespace");
			EList<EObject> eContents = algorithm.eContents();
			for (EObject child : eContents) {
				String value = importResolver.getValue(child);
				ImportNormalizer resolver = createImportedNamespaceResolver(value, ignoreCase);
				if (resolver != null)
					resolvers.add(resolver);
			}
		}

		return resolvers;
	}

}

Import:
"import" comments+=Comment* importedNamespace=WildCardName;

fragment = scoping.ImportNamespacesScopingFragment {}