override fun getCallableSymbols(nameFilter: KtScopeNameFilter): Sequence<KtCallableSymbol> = withValidityAssertion {
        sequence {
            owner.firSymbol.fir.declarations.forEach { firDeclaration ->
                val callableDeclaration = when (firDeclaration) {
                    is FirSimpleFunction -> firDeclaration.takeIf { nameFilter(firDeclaration.name) }