How do I delete a single uid type object using dgo?

[fengchangfight (Fengchang)]

thanks, problem solved, I used the code below:

d = Knowledge{
			Uid: srcId,
			RelatedTo: []Knowledge{{
				Uid: targetId,
			}},
		}
	}
	pb, err := json.Marshal(d)
	mu := &api.Mutation{
		CommitNow:  true,
		DeleteJson: pb,
	}

it’s just that the dgo documentation is not so complete