{"ast_node_type":"other","tokens":[{"end":3,"kind":"keyword","start":0,"text":"//!"}]}
//!
//! (March 1, 2012): 181–216, <https://doi.org/10.1017/S0956796812000093>.
//! Also see <https://rustc-dev-guide.rust-lang.org/macro-expansion.html#hygiene-and-hierarchies>