syntax_data: {"ast_node_type":"other","tokens":[{"end":22,"kind":"keyword","start":0,"text":"Iter::Item:"}]}
source_snippet:     Iter::Item: Deref,
context_before:     Iter::IntoIter: ExactSizeIterator,
context_after:     <Iter::Item as Deref>::Target: Copy + TypeFoldable<I>,