Attribute Class
===============

.. php:class:: Attribute

    Represents an ``Entity`` Attribute

    .. php:method:: __construct(string $name, string $type)

        Create a new Attribute instance

        :param string $name: Attribute name
        :param string $type: Attribute type
        :returns: An ``Attribute`` instance
        :rtype: Attribute

    .. php:method:: addComment(string $comment)

        :param string $comment: The comment
        :returns: An ``Attribute`` instance with the comment
        :rtype: Attribute

    .. php:method:: addKey(Key ...$key)

        Add key type(s) to the attribute

        :param Key ...$key: Key type(s)
        :returns: An ``Attribute`` instance with the keys added
        :rtype: Attribute

    .. php:method:: withKey(Key ...$key)

        Set key type(s) to the attribute

        :param Key ...$key: Key type(s)
        :returns: An ``Attribute`` instance with the keys
        :rtype: Attribute