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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 _handle_remark_msg(self, msg):
 """ Try to parse the message provided with the remark tag or element. :param str msg: The message :raises overpy.exception.OverpassRuntimeError: If message starts with 'runtime error:' :raises overpy.exception.OverpassRuntimeRemark: If message starts with 'runtime remark:' :raises overpy.exception.OverpassUnknownError: If we are unable to identify the error """

        msg = msg.strip()
        if msg.startswith("runtime error:"):
            raise exception.OverpassRuntimeError(msg=msg)
        elif msg.startswith("runtime remark:"):
            raise exception.OverpassRuntimeRemark(msg=msg)
        raise exception.OverpassUnknownError(msg=msg)