public NeptuneSettings withIamAuthEnabled(Boolean iamAuthEnabled) {
        setIamAuthEnabled(iamAuthEnabled);
        return this;
    }
<p>
If you want Identity and Access Management (IAM) authorization enabled for this endpoint, set this parameter to
<code>true</code>. Then attach the appropriate IAM policy document to your service role specified by
<code>ServiceAccessRoleArn</code>. The default is <code>false</code>.
</p>

@param iamAuthEnabled
       If you want Identity and Access Management (IAM) authorization enabled for this endpoint, set this
       parameter to <code>true</code>. Then attach the appropriate IAM policy document to your service role
       specified by <code>ServiceAccessRoleArn</code>. The default is <code>false</code>.
@return Returns a reference to this object so that method calls can be chained together.
aws-java-sdk-dms/src/main/java/com/amazonaws/services/databasemigrationservice/model/NeptuneSettings.java