Clean-param directive in robots.txt

Hi,

Yandex send a mail for about “GET parameters” error on my sites.

Here are examples of pages and their duplicate pages with insignificant GET parameters:

add_to_wishlist:
– https://yagbakimi.com.tr/bakim-urunleri/elf-moto-chain-paste/?wccm=add-to-list&pid=5566&nonce=75cbcb7720
– https://yagbakimi.com.tr/bakim-urunleri/elf-moto-chain-paste/?wccm=add-to-list&pid=5566&nonce=75cbcb7720&add_to_wishlist=5608

These pages are duplicates, how can do the “Clean-param” directive in robots.txt? I want that the robot ignores insignificant GET parameters and combines signals from identical pages on the main page.

Can you write a sample robot file for me? I looked at this page but couldn’t write it correctly.

Thanks…