public TaxRegistrationEntry withRegistrationId(String registrationId) {
        setRegistrationId(registrationId);
        return this;
    }
<p>
Your tax registration unique identifier.
</p>

@param registrationId
       Your tax registration unique identifier.
@return Returns a reference to this object so that method calls can be chained together.
aws-java-sdk-taxsettings/src/main/java/com/amazonaws/services/taxsettings/model/TaxRegistrationEntry.java