code: public <M extends Model> Persister<M> withPersister(String server) {
          Persister<M> persister = _getPersister(server);
          if (persister == null) {
              throw new NotPersisterFindException();
          }
          return persister;
      }
docs: <p>withPersister.</p>
  
  @param server a {@link java.lang.String} object.
  @return a {@link ameba.db.model.Persister} object.
  @param <M> a M object.