Under Guides of this site in Immigration Guides there is section called "Children of US Citizens or Permanent Residents"
Under this section there is page for the procedure -
On this page there is a section that states the following:
Can my child come to the United States to live while the visa petition is pending?
If you are a U.S. citizen, once you file Form I-130, your child is eligible to apply for a nonimmigrant K-4 visa. This will entitle him or her to come to the United States to live and work or go to school while the visa petition is pending. To petition for this benefit, you may file Form I-129F. However, you are not required to file Form I-129F and your child does not require a K-4 visa. Your child may wait abroad for immigrant visa processing. Seeking a K-4 visa can be a method for him or her to come to the United States more quickly. For more information, see the “K3-K4 Visa” page.
I assume this is a mistake?