diff --git a/klab.engine/src/main/java/org/integratedmodelling/klab/components/network/model/Network.java b/klab.engine/src/main/java/org/integratedmodelling/klab/components/network/model/Network.java
index 2d72bc9a0..dd256ae1b 100644
--- a/klab.engine/src/main/java/org/integratedmodelling/klab/components/network/model/Network.java
+++ b/klab.engine/src/main/java/org/integratedmodelling/klab/components/network/model/Network.java
@@ -3,17 +3,9 @@
 import java.io.File;
 import java.io.FileNotFoundException;
 import java.io.FileOutputStream;
-import java.io.IOException;
 import java.io.OutputStream;
 import java.io.OutputStreamWriter;
 import java.io.Writer;
-import java.net.URI;
-import java.net.http.HttpClient;
-import java.net.http.HttpRequest;
-import java.net.http.HttpResponse;
-import java.net.http.HttpRequest.BodyPublishers;
-import java.net.http.HttpResponse.BodyHandlers;
-import java.nio.file.Paths;
 import java.util.ArrayList;
 import java.util.Collection;
 import java.util.LinkedHashMap;
@@ -21,8 +13,6 @@
 import java.util.Map;
 import java.util.Map.Entry;
 import java.util.function.Function;
-import java.util.stream.Collectors;
-
 import org.integratedmodelling.klab.Version;
 import org.integratedmodelling.klab.api.knowledge.IMetadata;
 import org.integratedmodelling.klab.api.observations.IDirectObservation;
@@ -30,8 +20,6 @@
 import org.integratedmodelling.klab.api.observations.IObservation;
 import org.integratedmodelling.klab.api.observations.IRelationship;
 import org.integratedmodelling.klab.api.provenance.IArtifact;
-import org.integratedmodelling.klab.components.geospace.routing.ValhallaException;
-import org.integratedmodelling.klab.data.encoding.Encoding.KlabData;
 import org.integratedmodelling.klab.engine.runtime.api.IRuntimeScope;
 import org.integratedmodelling.klab.exceptions.KlabIOException;
 import org.integratedmodelling.klab.utils.JsonUtils;