def __init__(self, attachment, **kwargs):
        """
        :param attachment: attachment to open
        :type attachment: :class:`~alot.db.attachment.Attachment`
        """
        Command.__init__(self, **kwargs)
        self.attachment = attachment
def __init__ ( self , attachment , ** kwargs ) : Command . __init__ ( self , ** kwargs ) self . attachment = attachment
:param attachment: attachment to open
        :type attachment: :class:`~alot.db.attachment.Attachment`