False None Null True __error __library_type __library_type_const add addr any assert assert-exception attribute begin bitfield bool break bytes case cast catch confirm const const_iterator constant continue cregexp cstring default delete else end enum exception export file for foreach from function global ident if import in inout int16 int32 int64 int8 interval interval_ns iterator list local map mark mod module network new object on optional pack port print priority private property public real regexp reject result return set sink stop stream string struct switch throw time time_ns timer try tuple type typeinfo uint16 uint32 uint64 uint8 unit unpack unset var vector view void while