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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 build_script(data):
 """ Creates an output script containing an OP_RETURN and a PUSHDATA. :param bytes data: The content of the PUSHDATA. :return: The final script. :rtype: CScript """

        return bitcoin.core.script.CScript(
            bytes([bitcoin.core.script.OP_RETURN]) + bitcoin.core.script.CScriptOp.encode_op_pushdata(data))