public String getIdentityId() {
        return this.identityId;
    }
<p>
The globally unique identifier (GUID) of the user or group from the IAM Identity Center Identity Store. For more
information, see <a href=
"https://docs.aws.amazon.com/singlesignon/latest/IdentityStoreAPIReference/API_User.html#singlesignon-Type-User-UserId"
>UserId</a> and <a href=
"https://docs.aws.amazon.com/singlesignon/latest/IdentityStoreAPIReference/API_Group.html#singlesignon-Type-Group-GroupId"
>GroupId</a> in the <i>IAM Identity Center Identity Store API Reference</i>. Either <code>IdentityName</code> or
<code>IdentityId</code> must be specified, but not both.
</p>

@return The globally unique identifier (GUID) of the user or group from the IAM Identity Center Identity Store.
        For more information, see <a href=
        "https://docs.aws.amazon.com/singlesignon/latest/IdentityStoreAPIReference/API_User.html#singlesignon-Type-User-UserId"
        >UserId</a> and <a href=
        "https://docs.aws.amazon.com/singlesignon/latest/IdentityStoreAPIReference/API_Group.html#singlesignon-Type-Group-GroupId"
        >GroupId</a> in the <i>IAM Identity Center Identity Store API Reference</i>. Either
        <code>IdentityName</code> or <code>IdentityId</code> must be specified, but not both.
aws-java-sdk-emr/src/main/java/com/amazonaws/services/elasticmapreduce/model/CreateStudioSessionMappingRequest.java