human
Solve the following python programming problem given the following code:
def _from_documents(doc_method_name) : 
    def method(self, fileids = None, categories = None) : 
        return self._doc_iterator (fileids, categories, doc_method_name) 
method.__name__ = str (method) 
    return method 

    
    

    Fix the buggy line: method.__name__ = str (method)
assistant
#Here is Python code to fix the buggy line: method.

method.__name__ = str (doc_method_name)