How do I add a signed 8332 form I have to my return before it is filed ?

IRS form 8332 is fulfilled when you answer the question regarding whether you have an agreement for someone else to claim a child as a Dependent. However, here is the IRS link with the actual form should you still need to mail it in separately.

https://www.irs.gov/pub/irs-pdf/f8332.pdf 

This is not what I am asking. I want to submit a 8332 from signed by the custodian parent so I can claim the child in my return. Not the other way around

Please refer to this answer, you have to separately mail it into the IRS along with a transmittal form.
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