syntax_data: {"ast_node_type":"other","tokens":[{"end":36,"kind":"keyword","start":0,"text":"PeekCallKind::ByVal,"}]}
source_snippet:                 PeekCallKind::ByVal,
context_before:             | (
context_after:                 mir::Rvalue::Use(mir::Operand::Move(place) | mir::Operand::Copy(place)),