{"ast_node_type":"other","tokens":[{"end":56,"kind":"keyword","start":0,"text":"//!"}]}
//! Stanford Computer Science Department STAN-CS-79-770,
//! Derek C. Oppen, "Pretty Printing" (1979),
//! <http://i.stanford.edu/pub/cstr/reports/cs/tr/79/770/CS-TR-79-770.pdf>.