public Hcast doWith(final BiConsumer<com.hazelcast.config.Config, Config> configurer) {
    this.configurer = requireNonNull(configurer, "Configurer callback is required.");
    return this;
  }
public Hcast doWith(final BiConsumer<com.hazelcast.config.Config, Config> configurer) {
    this.configurer = requireNonNull(configurer, "Configurer callback is required.");
    return this;
  }
public Hcast doWith ( final BiConsumer < com . hazelcast . config . Config , Config > configurer ) { this . configurer = requireNonNull ( configurer , "Configurer callback is required." ) ; return this ; }
Set a configurer callback.

@param configurer A configurer callback.
@return This instance.
Set a configurer callback .