syntax_data: {"ast_node_type":"other","tokens":[{"end":30,"kind":"keyword","start":0,"text":"//"}]}
source_snippet:                     // fa0-fa7
context_before:                     f0, f1, f2, f3, f4, f5, f6, f7,
context_after:                     f10, f11, f12, f13, f14, f15, f16, f17,