syntax_data: {"ast_node_type":"other","tokens":[{"end":28,"kind":"keyword","start":0,"text":"#![allow(internal_features)]"}]}
source_snippet: #![allow(internal_features)]
context_before: // tidy-alphabetical-start
context_after: #![doc(html_root_url = "https://doc.rust-lang.org/nightly/nightly-rustc/")]