public String getIdentityAttributeName() {
        return this.identityAttributeName;
    }
<p>
The IAM Identity Center field name that contains the identifiers of your users, such as their emails. This is
used for <a href="https://docs.aws.amazon.com/kendra/latest/dg/user-context-filter.html">user context
filtering</a> and for granting access to your Amazon Kendra experience. You must set up IAM Identity Center with
Amazon Kendra. You must include your users and groups in your Access Control List when you ingest documents into
your index. For more information, see <a
href="https://docs.aws.amazon.com/kendra/latest/dg/getting-started-aws-sso.html">Getting started with an IAM
Identity Center identity source</a>.
</p>

@return The IAM Identity Center field name that contains the identifiers of your users, such as their emails.
        This is used for <a href="https://docs.aws.amazon.com/kendra/latest/dg/user-context-filter.html">user
        context filtering</a> and for granting access to your Amazon Kendra experience. You must set up IAM
        Identity Center with Amazon Kendra. You must include your users and groups in your Access Control List
        when you ingest documents into your index. For more information, see <a
        href="https://docs.aws.amazon.com/kendra/latest/dg/getting-started-aws-sso.html">Getting started with an
        IAM Identity Center identity source</a>.
aws-java-sdk-kendra/src/main/java/com/amazonaws/services/kendra/model/UserIdentityConfiguration.java