syntax_data: {"ast_node_type":"other","tokens":[{"end":60,"kind":"keyword","start":0,"text":"const"}]}
source_snippet: const BASE_LEN_INTERNED_MARKER: u16 = 0b1111_1111_1111_1111;
context_before: const PARENT_TAG: u16 = 0b1000_0000_0000_0000;
context_after: const CTXT_INTERNED_MARKER: u16 = 0b1111_1111_1111_1111;