Anybody know how to swap trades?

Do you know how to swap the sides?

i mean you could type:

/summon minecraft:villager ~ ~ ~ {VillagerData:{type:plains,profession:nitwit,level:99},Offers:{Recipes:[{rewardExp:0b,buy:{id:dirt,Count:1},sell:{id:diamond,Count:1}}]}}

Good trade for people with a world without dirt.

Not that worthy