syntax_data: {"ast_node_type":"other","tokens":[{"end":79,"kind":"keyword","start":0,"text":"ProjectionElem::ConstantIndex"}]}
source_snippet:             ProjectionElem::ConstantIndex { offset, min_length, from_end } => {
context_before:             }
context_after:                 ProjectionElem::ConstantIndex { offset, min_length, from_end }