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

@param configurer Configurer callback.
@return This module.