<SYSTEM_TASK:>
Solve the following problem using Python, implementing the functions described below, one line at a time
<END_TASK>
<USER_TASK:>
Description:
 def create_configuration(name='Base'):
 """Create a configuration base class It is built using :class:`ConfigurationMeta`. Subclassing such a base class will register exposed methods .. class:: Base .. attribute:: configuration Configuration dict that can be used by a Router or the API .. classmethod:: register(element, action, method) Register an element in the :attr:`configuration` :param element: the element to register :type element: tuple of (class, method name) or function :param string action: name of the exposed action that will hold the method :param string method: name of the exposed method """

    @classmethod
    def register(cls, element, action, method):
        if not action in cls.configuration:
            cls.configuration[action] = {}
        if method in cls.configuration[action]:
            raise ValueError('Method %s already defined for action %s' % (method, action))
        cls.configuration[action][method] = element
    return ConfigurationMeta(name, (object,), {'configuration': {}, 'register': register})