presto-main/src/main/java/io/prestosql/server/InternalCommunicationConfig.java/InternalCommunicationConfig/setSharedSecret
class InternalCommunicationConfig:    @ConfigSecuritySensitive
    @Config("internal-communication.shared-secret")
    public InternalCommunicationConfig setSharedSecret(String sharedSecret)
    {
        this.sharedSecret = sharedSecret;
        return this;
    }