<SYSTEM_TASK:>
Solve the following problem using Python, implementing the functions described below, one line at a time
<END_TASK>
<USER_TASK:>
Description:
 def register(self, name):
 """Register a callable with the registry under a particular name. Parameters name : str The name under which to register a function Returns ------- dec : callable A decorator that takes a function and will register it under the name. """

        def dec(func):
            self._registry[name] = func
            return func
        return dec