public String getClientToken() {
        return this.clientToken;
    }
<p>
A unique, case-sensitive identifier to ensure idempotency of the request.
</p>

@return A unique, case-sensitive identifier to ensure idempotency of the request.
aws-java-sdk-opensearchserverless/src/main/java/com/amazonaws/services/opensearchserverless/model/DeleteCollectionRequest.java