Stores a callable member to the private __store__

        :param mixed o: Any callable (function or method)
        :param str method_name: The name of the attribute
        :param mixed member: A reference to the member

def __store_callable(self, o, method_name, member):
        """
        Stores a callable member to the private __store__

        :param mixed o: Any callable (function or method)
        :param str method_name: The name of the attribute
        :param mixed member: A reference to the member

        """
        self.__store__['callables'][method_name] = eval( "o." + method_name )
        self.__store__['callables'][method_name[0].lower() + method_name[1:]] = eval( "o." + method_name )
        ret_val = self.__wrap( method_name )
        self.__store__[ method_name ] = ret_val
        self.__store__[ method_name[0].lower() + method_name[1:] ] = ret_val