@Override
        public boolean equals(Object o) {
            if (this == o) return true;
            if (o == null || getClass() != o.getClass()) return false;
            return steps.equals(((Steps) o).steps);
        }
A container for several steps, by default in serial order
config-model-api/src/main/java/com/yahoo/config/application/api/DeploymentSpec.java