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Solve the following problem using Python, implementing the functions described below, one line at a time
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Description:
 def get_node(self, name):
 """Retrieve a node from the graph. Given a node's name the corresponding Node instance will be returned. If one or more nodes exist with that name a list of Node instances is returned. An empty list is returned otherwise. """

        
        match = list()
        
        if self.obj_dict['nodes'].has_key(name):
        
            match.extend( [ Node( obj_dict = obj_dict ) for obj_dict in self.obj_dict['nodes'][name] ])
        
        return match