import jetbrains.mps.internal.collections.runtime.SetSequence;
import java.util.HashSet;
import java.util.List;
import com.intellij.openapi.actionSystem.AnAction;
import com.intellij.openapi.actionSystem.AnActionEvent;
<BUG>import com.intellij.ide.projectView.ProjectView;
</BUG>
import jetbrains.mps.workbench.MPSDataKeys;
<BUG>import com.intellij.ide.projectView.impl.AbstractProjectViewPane;
import jetbrains.mps.ide.projectPane.favorites.FavoritesProjectPane;
</BUG>
import org.jetbrains.annotations.Nullable;

import jetbrains.mps.internal.collections.runtime.SetSequence;
import java.util.HashSet;
import java.util.List;
import com.intellij.openapi.actionSystem.AnAction;
import com.intellij.openapi.actionSystem.AnActionEvent;
import com.intellij.openapi.project.Project;
import jetbrains.mps.workbench.MPSDataKeys;
import jetbrains.mps.ide.projectPane.favorites.FavoritesUtil;
import org.jetbrains.annotations.Nullable;
