syntax_data: {"ast_node_type":"other","tokens":[{"end":74,"kind":"keyword","start":0,"text":"pub(crate)"}]}
source_snippet:     pub(crate) const parse_unpretty: &str = "`string` or `string=string`";
context_before:     pub(crate) const parse_instrument_xray: &str = "either a boolean (`yes`, `no`, `on`, `off`, etc), or a comma separated list of settings: `always` or `never` (mutually exclusive), `ignore-loops`, `instruction-threshold=N`, `skip-entry`, `skip-exit`";
context_after:     pub(crate) const parse_treat_err_as_bug: &str = "either no value or a non-negative number";