fn set_defined<MS: STeXModuleStore, Err: FnMut(String, SourceRange<LSPLineCol>, DiagnosticLevel)>(
symbol: &SymbolReference<LSPLineCol>,
range: SourceRange<LSPLineCol>,
groups: &mut Vec<STeXGroup<'_, MS, LSPLineCol, Err>>,
)fn set_defined<MS: STeXModuleStore, Err: FnMut(String, SourceRange<LSPLineCol>, DiagnosticLevel)>(
symbol: &SymbolReference<LSPLineCol>,
range: SourceRange<LSPLineCol>,
groups: &mut Vec<STeXGroup<'_, MS, LSPLineCol, Err>>,
)