human
Solve the following python programming problem given the following code:
def _function(traverser, node) : 
    '
    A helper function that traverses and instantiates function declarations and
    function expressions.
    ' 
    current_contexts = traverser.contexts [:] 
    def wrap() : 
        traverser.function_collection.append ([]) 
        traverser._debug ('THIS_PUSH') 
        traverser.this_stack.append (JSObject (traverser = traverser)) 
        traverser.contexts = current_contexts 
        params = { 
            
} 
        for param in node ['params'] : 
            if (param ['type'] == 'Identifier') : 
                params [param ['name']] = (lambda : JSObject (traverser = traverser)) 
else : 
                pass 
context = JSContext (data = params, traverser = traverser) 
        traverser.contexts.append (context) 
        traverser.traverse_node (node ['body']) 
        func_coll = traverser.function_collection.pop () 
        for func in func_coll : 
            func () 
traverser.contexts.pop () 
        traverser._debug ('THIS_POP') 
        traverser.this_stack.pop () 
if traverser.function_collection : 
        traverser.function_collection [(- 1)].append (wrap) 
else : 
        wrap (wrap, node) 
output = JSObject (traverser = traverser, callable_ = True) 
    output.TYPEOF = 'function' 
    return output 

    
    

    Fix the buggy line: wrap (wrap, node)
assistant
#Here is Python code to fix the buggy line: wrap (wrap, node)
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wrap (traverser, node)