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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 put(self, dash_id=0):
 """Update a dash meta and content, return updated dash content. Args: dash_id: dashboard id. Returns: A dict containing the updated content of that dashboard, not include the meta info. """

        data = request.get_json()
        updated = self._update_dash(dash_id, data)
        return build_response(dict(data=updated, code=200))