human
Solve the following python programming problem given the following code:
def _AllowBuilderStyleCalls(node) : 
    "Allow splitting before '.' if it's a builder style function call." 
    def RecGetLeaves(node) : 
        if isinstance (node, pytree.Leaf) : 
            return [node] 
children = [] 
        for child in node.children : 
            children += RecGetLeaves (child) 
return children 
list_of_children = RecGetLeaves (node) 
    prev_child = None 
    for child in node : 
        if (child.value == '.') : 
            if (prev_child.lineno != child.lineno) : 
                pytree_utils.SetNodeAnnotation (child, pytree_utils.Annotation.SPLIT_PENALTY, 0) 
prev_child = child 

    
    

    Fix the buggy line: for child in node :
assistant
#Here is Python code to fix the buggy line: for child in node :
.

for child in list_of_children :