@Override
        public boolean equals(Object o) {
            if (this == o) return true;
            if ( ! (o instanceof ParallelSteps)) return false;
            return Objects.equals(steps(), ((ParallelSteps) o).steps());
        }
A container for multiple other steps, which are executed in parallel
config-model-api/src/main/java/com/yahoo/config/application/api/DeploymentSpec.java