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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(self, conn_name, default=None, **kwargs):
 """ returns the specified connection args: conn_name: the name of the connection """


        if isinstance(conn_name, RdfwConnections):
            return conn_name
        try:
            return self.conns[conn_name]
        except KeyError:
            if default:
                return self.get(default, **kwargs)
            raise LookupError("'%s' connection has not been set" % conn_name)