public DNISEmergencyCallingConfiguration withCallingCountry(String callingCountry) {
        setCallingCountry(callingCountry);
        return this;
    }
<p>
The country from which emergency calls are allowed, in ISO 3166-1 alpha-2 format.
</p>

@param callingCountry
       The country from which emergency calls are allowed, in ISO 3166-1 alpha-2 format.
@return Returns a reference to this object so that method calls can be chained together.
aws-java-sdk-chime/src/main/java/com/amazonaws/services/chime/model/DNISEmergencyCallingConfiguration.java