syntax_data: {"ast_node_type":"other","tokens":[{"end":68,"kind":"keyword","start":0,"text":"Some(\"command\")"}]}
source_snippet:             Some("command") => *slot = Some(WasiExecModel::Command),
context_before:         match v {
context_after:             Some("reactor") => *slot = Some(WasiExecModel::Reactor),