human
Solve the following python programming problem given the following code:
def get_data(self) : 
    previous_term = None 
    for (name, field) in reversed (self.terms) : 
        term = TermsAggregation (name, field) 
        if (previous_term is not None) : 
            term = term.aggregation (counts) 
previous_term = term 
query = self.base_query.aggregation (term) 
    def _add_terms(aggregation_bucket, term, remaining_terms, current_counts, current_key = None) : 
        for bucket in getattr (aggregation_bucket, term.name).buckets_list : 
            key = ((bucket.key,) if (current_key is None) else (current_key + (bucket.key,))) 
            if remaining_terms : 
                _add_terms (bucket, remaining_terms [0], remaining_terms [1 :], current_counts, current_key = key) 
else : 
                current_counts [key] += bucket.doc_count 
counts = defaultdict ((lambda : 0)) 
    _add_terms (query.size (0).run ().aggregations, self.terms [0], self.terms [1 :], current_counts = counts) 
    return self._format_counts (counts) 

    
    

    Fix the buggy line: term = term.aggregation (counts)
assistant
#Here is Python code to fix the buggy line: term = term.

term = term.aggregation (previous_term)