public CACertificateDescription withValidity(CertificateValidity validity) {
        setValidity(validity);
        return this;
    }
<p>
When the CA certificate is valid.
</p>

@param validity
       When the CA certificate is valid.
@return Returns a reference to this object so that method calls can be chained together.
aws-java-sdk-iot/src/main/java/com/amazonaws/services/iot/model/CACertificateDescription.java