syntax_data: {"ast_node_type":"other","tokens":[{"end":73,"kind":"keyword","start":0,"text":"///"}]}
source_snippet:     /// codepoint offsets. For the purpose of the hash that's sufficient.
context_before:     /// Also note that we are hashing byte offsets for the column, not unicode
context_after:     /// Also, hashing filenames is expensive so we avoid doing it twice when the