code: def dependent(self, dep_type, node):
          
          self._dependents[dep_type] = self._dependents.get(dep_type, []) + [node]
          return self
docs: Registers a node as dependent on this node
  
          :param dep_type: The dependency type
          :type dep_type: str
          :param node: The node to be registered as a dependent
          :type node: corenlp_xml.dependencies.DependencyNode
  
          :return: self, provides fluent interface
          :rtype: corenlp_xml.dependencies.DependencyNode