** A list of Fantom visibilities.enum class PlasticVisibility {** Private scope. visPrivate ("private "),** Internal scope. visInternal ("internal "),** Protected scope. visProtected("protected "),** Public scope. visPublic ("");** The keyword to be used in Fantom source code. const Str keywordprivatenew make(Str keyword){this.keyword = keyword}** Returns the visibility of the given field / method.static PlasticVisibility fromSlot(Slot slot){if(slot.isPrivate)return visPrivateif(slot.isInternal)return visInternalif(slot.isProtected)return visProtectedif(slot.isPublic)return visPublicthrow Err("What visibility is ${slot.signature}???")}}