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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 _member_defs(self):
 """ A single string containing the aggregated member definitions section of the documentation page """

        members = self._clsdict['__members__']
        member_defs = [
            self._member_def(member) for member in members
            if member.name is not None
        ]
        return '\n'.join(member_defs)