human
Solve the following python programming problem given the following code:
def provider(self, name, alias = ()) : 
    ' Decorator to register a dependency provider. See :func:`add_provider` for a description.
        :param name: Name of the injection point.
        :param alias: A list of alias names for this injection point.
        :return: Decorator that registers the provider function to the injector.
        ' 
    assert isinstance (name, str) 
    def decorator(func) : 
        self.add_provider (name, func, alias = alias) 
        return func 
return self 

    
    

    Fix the buggy line: return self
assistant
#Here is Python program to fix the buggy line: return self
.

return def decorator(