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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 data(self):
 """Data for packet creation."""

        header = struct.pack('>BLB',
                             4,             # version
                             self.created,  # creation
                             self.algo_id)  # public key algorithm ID
        oid = util.prefix_len('>B', self.curve_info['oid'])
        blob = self.curve_info['serialize'](self.verifying_key)
        return header + oid + blob + self.ecdh_packet