private void processConditionChain(PsiPolyadicExpression expression, boolean and) {
      StreamEx.of(expression.getOperands())
        .map(operand -> isAllowed(operand) ? operand : null)
        .groupRuns((o1, o2) -> o1 != null && o2 != null)
        .remove(list -> list.size() == 1)
        .forEach(operands -> process(expression, operands, and));
    }
private void processConditionChain(PsiPolyadicExpression expression, boolean and)