syntax_data: {"ast_node_type":"import","tokens":[{"end":99,"kind":"keyword","start":0,"text":"//"}]}
source_snippet:         // That's okay for now, the only use of this is when generating docs, which we don't do for
context_before:         // FIXME: This doesn't properly validate anything and just ignores the data if it's invalid.
context_after:         // custom targets.