human
Solve the following python programming problem given the following code:
def children(self, term, recursive = False, **kwargs) : 
    ' Returns all terms of the given semantic type: "quantity" => ["many", "lot", "few", ...]
            If recursive=True, traverses children down to the leaves.
        ' 
    def dfs(term, recursive = False, visited = { 
        
}, **kwargs) : 
        if (term in visited) : 
            return [] 
(visited [term], a) = (True, []) 
        if dict.__contains__ (self, term) : 
            a = self [term] [1].keys () 
for classifier in self.classifiers : 
            a.extend ((classifier.children (term, ** kwargs) or [])) 
if recursive : 
            for w in a : 
                a += dfs (w, recursive, visited, ** kwargs) 
return a 
return unique (dfs (self._normalize (term), term, { 
        
}, ** kwargs)) 

    
    

    Fix the buggy line: return unique (dfs (self._normalize (term), term, {
assistant
#Here is Python code to fix the buggy line: return unique (dfs (self.

return unique (dfs (self._normalize (term), recursive, {