public String getDefaultAuthenticationMethod() {
        return this.defaultAuthenticationMethod;
    }
<p>
The default authentication method that Amazon Pinpoint uses to authenticate with APNs for this channel, key or
certificate.
</p>

@return The default authentication method that Amazon Pinpoint uses to authenticate with APNs for this channel,
        key or certificate.
aws-java-sdk-pinpoint/src/main/java/com/amazonaws/services/pinpoint/model/APNSChannelResponse.java