public Proxy withPhoneNumberCountries(java.util.Collection<String> phoneNumberCountries) {
        setPhoneNumberCountries(phoneNumberCountries);
        return this;
    }
<p>
The countries for proxy phone numbers to be selected from.
</p>

@param phoneNumberCountries
       The countries for proxy phone numbers to be selected from.
@return Returns a reference to this object so that method calls can be chained together.
aws-java-sdk-chimesdkvoice/src/main/java/com/amazonaws/services/chimesdkvoice/model/Proxy.java