ALL_DOCUMENT_TYPES: readonly [
    "ActiveEffect",
    "Actor",
    "ActorDelta",
    "Adventure",
    "AmbientLight",
    "AmbientSound",
    "Card",
    "Cards",
    "ChatMessage",
    "Combat",
    "Combatant",
    "CombatantGroup",
    "Drawing",
    "FogExploration",
    "Folder",
    "Item",
    "JournalEntry",
    "JournalEntryCategory",
    "JournalEntryPage",
    "Macro",
    "MeasuredTemplate",
    "Note",
    "Playlist",
    "PlaylistSound",
    "Region",
    "RegionBehavior",
    "RollTable",
    "Scene",
    "Setting",
    "TableResult",
    "Tile",
    "Token",
    "User",
    "Wall",
] = ...

A listing of all valid Document types, both primary and embedded.