<SYSTEM_TASK:>
Solve the following problem using Python, implementing the functions described below, one line at a time
<END_TASK>
<USER_TASK:>
Description:
 def browse_node_lookup(self, ResponseGroup="BrowseNodeInfo", **kwargs):
 """Browse Node Lookup. Returns the specified browse node's name, children, and ancestors. Example: """

        response = self.api.BrowseNodeLookup(
            ResponseGroup=ResponseGroup, **kwargs)
        root = objectify.fromstring(response)
        if root.BrowseNodes.Request.IsValid == 'False':
            code = root.BrowseNodes.Request.Errors.Error.Code
            msg = root.BrowseNodes.Request.Errors.Error.Message
            raise BrowseNodeLookupException(
                "Amazon BrowseNode Lookup Error: '{0}', '{1}'".format(
                    code, msg))
        return [AmazonBrowseNode(node.BrowseNode) for node in root.BrowseNodes]