Hello guys , 

I need help with filtering , i am using domain filtering to filter products , the child_of operator allows me to select the products that are a child node of my selection criteria for example child of categ_id  94.

'product_id': fields.many2one('product.product','Product', domain="[('categ_id', 'child_of', 94)]", required=True)

is there a domain operator that shows all products that are not in the child_of a certain node. basically a opposite of child_of ?