syntax_data: {"ast_node_type":"other","tokens":[{"end":53,"kind":"keyword","start":0,"text":"pub(crate)"}]}
source_snippet:     pub(crate) const parse_string: &str = "a string";
context_before:     pub(crate) const parse_opt_bool: &str = parse_bool;
context_after:     pub(crate) const parse_opt_string: &str = parse_string;