modules/jooby-mongodb-rx/src/main/java/org/jooby/mongodb/MongoRx.java
public MongoRx doWith(final BiConsumer<MongoClientSettings.Builder, Config> configurer) {
    this.configurer = requireNonNull(configurer, "Configurer is required.");
    return this;
  }
public MongoRx doWith(final BiConsumer<MongoClientSettings.Builder, Config> configurer) {
    this.configurer = requireNonNull(configurer, "Configurer is required.");
    return this;
  }
Allow further configuration on the {@link MongoClientSettings}.

@param configurer Configurer callback.
@return This module.