syntax_data: {"ast_node_type":"other","tokens":[{"end":85,"kind":"keyword","start":0,"text":"wasi_exec_model:"}]}
source_snippet:     wasi_exec_model: Option<WasiExecModel> = (None, parse_wasi_exec_model, [TRACKED],
context_before:         Requires `-Clto[=[fat,yes]]`"),
context_after:         "whether to build a wasi command or reactor"),