syntax_data: {"ast_node_type":"other","tokens":[{"end":49,"kind":"keyword","start":0,"text":"///"}]}
source_snippet: /// used what the element type is supposed to be.
context_before: /// type variable for the element type since we won't know until it's
context_after: #[derive(Clone, Copy, PartialEq, Eq, PartialOrd, Ord, Hash)]