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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 _dumpdata_template(self, stringbuffer, index, name, opts):
 """ StringIO "templates" to build a command line for 'dumpdata' """

        context = self._get_dump_item_context(index, name, opts)

        stringbuffer.write(self.dumper_item_template.format(**context))

        return stringbuffer