public Key withKeyCheckValue(String keyCheckValue) {
        setKeyCheckValue(keyCheckValue);
        return this;
    }
<p>
The key check value (KCV) is used to check if all parties holding a given key have the same key or to detect that
a key has changed.
</p>

@param keyCheckValue
       The key check value (KCV) is used to check if all parties holding a given key have the same key or to
       detect that a key has changed.
@return Returns a reference to this object so that method calls can be chained together.
aws-java-sdk-paymentcryptography/src/main/java/com/amazonaws/services/paymentcryptography/model/Key.java