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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 _construct_unique_id(self, id_prefix, lines):
 """Constructs a unique ID for a particular prompt in this case, based on the id_prefix and the lines in the prompt. """

        text = []
        for line in lines:
            if isinstance(line, str):
                text.append(line)
            elif isinstance(line, CodeAnswer):
                text.append(line.dump())
        return id_prefix + '\n' + '\n'.join(text)