Actor Class
===========

.. php:class:: Actor

    Represents a participant that uses the actor symbol

    Actor extends Participant

    .. php:method:: __construct(string $id, ?string $alias = null, ?ParticipantType $type = null)

        Create a new Actor instance

        :param string $id: Actor id
        :param ?string $alias: Actor alias (default: use the id as the alias)
        :param ?ParticipantType $type: Actor type (default: no type)
        :returns: A new instance of ``Actor``
        :rtype: Actor

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

        Sets a comment for the Actor

        :param string $comment: The comment
        :returns: A new instance of ``Actor`` with the comment
        :rtype: Actor