{"ast_node_type":"other","tokens":[{"end":97,"kind":"keyword","start":0,"text":"//!"}]}
//! constructors. Some types have many constructors (like `u64`) or even an infinitely many (like
//! arity 2, `Some` has arity 1, `None` and `42` have arity 0. Each type has a known set of
//! `&str` and `&[T]`).