def node(reload=false)

      nid = @values[:nid]; return nil unless nid
      exe = execution(reload); return nil unless exe

      nodes = exe.data['nodes']; return nil unless nodes
      nodes[nid]
    end
def node(reload=false)

      nid = @values[:nid]; return nil unless nid
      exe = execution(reload); return nil unless exe

      nodes = exe.data['nodes']; return nil unless nodes
      nodes[nid]
    end
Returns the node hash linked to this model