public CreateDBInstanceRequest withEnableIAMDatabaseAuthentication(Boolean enableIAMDatabaseAuthentication) {
        setEnableIAMDatabaseAuthentication(enableIAMDatabaseAuthentication);
        return this;
    }
<p>
Not supported by Neptune (ignored).
</p>

@param enableIAMDatabaseAuthentication
       Not supported by Neptune (ignored).
@return Returns a reference to this object so that method calls can be chained together.
aws-java-sdk-neptune/src/main/java/com/amazonaws/services/neptune/model/CreateDBInstanceRequest.java