void (@NotNull PsiPolyVariantReference reference) { final ResolveResult[] resolveResults = reference.multiResolve(false); for (ResolveResult resolveResult : resolveResults) { if (resolveResult instanceof ImportedResolveResult) { final PyImportedNameDefiner definer = ((ImportedResolveResult)resolveResult).getDefiner(); if (definer != null) { myUsedImports.add(definer); } } } }