syntax_data: {"ast_node_type":"other","tokens":[{"end":55,"kind":"keyword","start":0,"text":"DebruijnIndex::from_u32(self.as_u32()"}]}
source_snippet:         DebruijnIndex::from_u32(self.as_u32() + amount)
context_before:     pub fn shifted_in(self, amount: u32) -> DebruijnIndex {
context_after:     }