syntax_data: {"ast_node_type":"other","tokens":[{"end":55,"kind":"keyword","start":0,"text":"///"}]}
source_snippet:     /// for the purposes of this check, so it can be an
context_before:     /// compile time (i.e., whether `T: Sized`). Lifetimes are ignored
context_after:     /// over-approximation in generic contexts, where one can have