syntax_data: {"ast_node_type":"function","tokens":[{"end":94,"kind":"keyword","start":0,"text":"pub"}]}
source_snippet:     pub fn to_real_filename<'a>(&self, local_path: impl Into<Cow<'a, Path>>) -> RealFileName {
context_before:     /// part if any remapping was performed.
context_after:         let local_path = local_path.into();