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Solve the following problem using Python, implementing the functions described below, one line at a time
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Description:
 def refresh_items(self):
 """ Refresh the items of the pattern. This method destroys the old items and creates and initializes the new items. It is overridden to NOT insert the children to the parent. The Fragment adapter handles this. """

        items = []
        if self.condition:
            for nodes, key, f_locals in self.pattern_nodes:
                with new_scope(key, f_locals):
                    for node in nodes:
                        child = node(None)
                        if isinstance(child, list):
                            items.extend(child)
                        else:
                            items.append(child)

        for old in self.items:
            if not old.is_destroyed:
                old.destroy()

        #: Insert items into THIS node, NOT the PARENT
        #if len(items) > 0:
        #    self.parent.insert_children(self, items)
        self.items = items