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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:
 async def create(cls, key: str):
 """ Create an SSH key in MAAS with the content in `key`. :param key: The content of the SSH key :type key: `str` :returns: The created SSH key :rtype: `SSHKey` """

        return cls._object(await cls._handler.create(key=key))