Invoke a view by its type, if the view already exists in the workspace, return itself, otherwise a new one will be created in the right sidebar.
reveal this leaf if reveal is set to true, otherwise just create the leaf without switching to it.
Invoke a view by its type, if the view already exists in the workspace, return itself, otherwise a new one will be created in the right sidebar.
reveal this leaf if reveal is set to true, otherwise just create the leaf without switching to it.