public String getClientToken() {
        return this.clientToken;
    }
<p>
Specifies a unique, case-sensitive identifier that you provide to ensure the idempotency of the request. This
lets you safely retry the request without accidentally performing the same operation a second time. Passing the
same value to a later call to an operation requires that you also pass the same value for all other parameters.
We recommend that you use a <a href="https://wikipedia.org/wiki/Universally_unique_identifier">UUID type of
value.</a>.
</p>
<p>
If you don't provide this value, then Amazon Web Services generates a random one for you.
</p>
<p>
If you retry the operation with the same <code>ClientToken</code>, but with different parameters, the retry fails
with an <code>IdempotentParameterMismatch</code> error.
</p>

@return Specifies a unique, case-sensitive identifier that you provide to ensure the idempotency of the request.
        This lets you safely retry the request without accidentally performing the same operation a second time.
        Passing the same value to a later call to an operation requires that you also pass the same value for all
        other parameters. We recommend that you use a <a
        href="https://wikipedia.org/wiki/Universally_unique_identifier">UUID type of value.</a>.</p>
        <p>
        If you don't provide this value, then Amazon Web Services generates a random one for you.
        </p>
        <p>
        If you retry the operation with the same <code>ClientToken</code>, but with different parameters, the
        retry fails with an <code>IdempotentParameterMismatch</code> error.
aws-java-sdk-ram/src/main/java/com/amazonaws/services/ram/model/PromotePermissionCreatedFromPolicyRequest.java