A person witnessing the action happening without doing anything. A witness is
not necessarily aware, much less approves of anything stated in the service
event. Example for a witness is students watching an operation or an advanced
directive witness.
Returns the enum constant of this type with the specified name.
The string must match exactly an identifier used to declare an
enum constant in this type. (Extraneous whitespace characters are
not permitted.)
Parameters:
name - the name of the enum constant to be returned.