Update cardano-api to 10.19
This corresponds to cardano-node 10.6.x. Fix resulting compiler errors.
This corresponds to cardano-node 10.6.x. Fix resulting compiler errors.
Update to cardano-api 10.16, corresponding to node 10.5.3. Fix the resulting compiler errors
Roll back to cardano-api 10.16 to minimize the compile errors
Bump the cardano-api lower bounds to match cardano-node 10.6.1.