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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 move_roles(self, roles):
 """ Moves roles to this role config group. The roles can be moved from any role config group belonging to the same service. The role type of the destination group must match the role type of the roles. @param roles: The names of the roles to move. @return: List of roles which have been moved successfully. """

    return move_roles(self._get_resource_root(), self.serviceRef.serviceName,
        self.name, roles, self.serviceRef.clusterName)