             tgt:
               node: 'Foo'
               port: 'in'
-            metadata: {}
             graph: 'foo'
         ]
         receive 'graph', expects, done

          command: 'removenode'
          payload:
            id: 'Bar'
            component: 'core/Drop'
            metadata: {}
            graph: 'foo'
        ]
        receive 'graph', expects, done

              node: 'Bar'
              port: 'in'
              index: 2
            graph: 'foo'
        ,
          protocol: 'graph'
