Is there an example of 8833 filled out for individuals? preferably for RRSP.

my spouse is a dual US and Canadian Citizen and have worked in Canada full time in 2023.  He needs to report his RRSP in US. the RRSP contribution is made via employee contributions to an employer sponsored group RRSP plan. By searching, we know that he will need to notify the IRS that you are lowering your taxable wages by the RRSP contribution. You do this by filing a Form 8833 with your US return and claiming an exemption under the tax treaty.

But some items on 8833 are confusing. Instructions in the form are inadequate and refer to other documents.
Can you please give an example of 8833 filled out for RRSP?