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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 inline_xref_graph(self):
 """ Copy contents of xref_graph to inlined meta object for each node """

        xg = self.xref_graph
        for n in self.nodes():
            if n in xg:
                self._add_meta_element(n, 'xrefs', [{'val':x} for x in xg.neighbors(n)])