{"ast_node_type":"other","tokens":[{"end":52,"kind":"keyword","start":0,"text":"//!"}]}
//! - `matches!(Ok(v0), Ok(p0)) := matches!(v0, p0)`
//! - `matches!(Foo { bar: v0, baz: v1 }, Foo { bar: p0, baz: p1 }) := matches!(v0, p0) && matches!(v1, p1)`
//! - `matches!(Ok(v0), Err(p0)) := false` (incompatible variants)