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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 responsify(error):
 """Take an Error model and return it as a Flask response"""

    assert str(type(error).__name__) == 'Error'
    if error.error in code_to_class:
        e = code_to_class[error.error](error.error_description)
        if error.error_id:
            e.error_id = error.error_id
        if error.user_message:
            e.user_message = error.user_message
        return e.http_reply()
    elif isinstance(error, PyMacaronException):
        return error.http_reply()
    else:
        return PyMacaronException("Caught un-mapped error: %s" % error).http_reply()