syntax_data: {"ast_node_type":"other","tokens":[{"end":78,"kind":"keyword","start":0,"text":"Rvalue::UnaryOp(UnOp::Not,"}]}
source_snippet:             Rvalue::UnaryOp(UnOp::Not, Operand::Copy(should_throw_exception)),
context_before:             is_ok,
context_after:         ))),