syntax_data: {"ast_node_type":"other","tokens":[{"end":73,"kind":"keyword","start":0,"text":"//"}]}
source_snippet:     // `SeekTarget`s, but it's not worth spending the time to compute it.
context_before:     // What we really want is an Eulerian cycle for the complete digraph over all possible
context_after:     for from in every_target() {