Function sdefinition_open

pub fn sdefinition_open<'a, MS: STeXModuleStore, Err: FnMut(String, SourceRange<LSPLineCol>, DiagnosticLevel)>(
    sdefinition: &mut Environment<'a, LSPLineCol, &'a str, STeXToken<LSPLineCol>>,
    p: &mut LaTeXParser<'a, ParseStr<'a, LSPLineCol>, STeXToken<LSPLineCol>, Err, STeXParseState<'a, LSPLineCol, MS>>,
)