{"ast_node_type":"other","tokens":[{"end":86,"kind":"keyword","start":0,"text":"//!"}]}
//! (0..=100, true))` is sensible, but `specialize(50..=200, (0..=100, true))` is not.
//! we're careful to only do that with constructors that make sense. For example, `specialize(0..50,
//!