public AdvancedSecurityOptionsInput withInternalUserDatabaseEnabled(Boolean internalUserDatabaseEnabled) {
        setInternalUserDatabaseEnabled(internalUserDatabaseEnabled);
        return this;
    }
<p>
True if the internal user database is enabled.
</p>

@param internalUserDatabaseEnabled
       True if the internal user database is enabled.
@return Returns a reference to this object so that method calls can be chained together.
aws-java-sdk-elasticsearch/src/main/java/com/amazonaws/services/elasticsearch/model/AdvancedSecurityOptionsInput.java