syntax_data: {"ast_node_type":"other","tokens":[{"end":69,"kind":"keyword","start":0,"text":"force_unstable_if_unmarked:"}]}
source_snippet:     force_unstable_if_unmarked: bool = (false, parse_bool, [TRACKED],
context_before:         `shallow` prints only type names, `none` prints nothing and disables `{:?}`. (default: `full`)"),
context_after:         "force all crates to be `rustc_private` unstable (default: no)"),