modules/jooby-cassandra/src/main/java/org/jooby/cassandra/Cassandra.java
public Cassandra doWithCluster(final Consumer<Cluster> configurer) {
    requireNonNull(configurer, "Cluster conf callbackrequired.");
    return doWithCluster((cc, c) -> configurer.accept(cc));
  }
public Cassandra doWithCluster(final Consumer<Cluster> configurer) {
    requireNonNull(configurer, "Cluster conf callbackrequired.");
    return doWithCluster((cc, c) -> configurer.accept(cc));
  }
Configure a cluster after creation.

@param configurer Configurer callback.
@return This module.