{"ast_node_type":"other","tokens":[{"end":98,"kind":"keyword","start":0,"text":"FieldDef,"}]}
    FieldDef, ForeignItem, GenericParam, Item, NodeId, Param, Pat, PatField, Path, Stmt, StmtKind,
    Arm, AssocItem, AttrItem, AttrKind, AttrVec, Attribute, Block, Crate, Expr, ExprField,
    Ty, Variant, Visibility, WherePredicate,