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                 +----------+        #       +------------+          +-----+
                 | GUIProxy |--remote#call-->| GUIAdapter |--calls-->| GUI |
+-----+--calls-->+----------+        #       +------------+          +-----+
| Idb |                               #                             /
+-----+<-calls--+------------+         #      +----------+<--calls-/
                | IdbAdapter |<--remote#call--| IdbProxy |
                +------------+         #      +----------+
                oid='idb_adapter'      #

The purpose of the Proxy and Adapter classes is to translate certain
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