Actions `cluster:admin/repository/analyze/blob` and `cluster:admin/repository/analyze/register` and so on are only invoked via the transport service, they do not need to register as client actions so we can drop the `ActionType` instance. Instead the root `RepositoryAnalyzeAction` should create and register all these transport actions itself. But even the root `RepositoryAnalyzeAction` should not be an `ActionType` derivative, we should just declare an `ActionType` instance directly. Moreover we can use `ActionType#localOnly` since the client action does not run on remote clusters.
x-pack/plugin/snapshot-repo-test-kit/src/main/java/org/elasticsearch/repositories/blobstore/testkit/RepositoryAnalyzeAction.java
}
        public ByteSizeValue getMaxBlobSize() {
            return maxBlobSize;
        }
        public ByteSizeValue getMaxTotalDataSize() {
            return maxTotalDataSize;
        }
        public boolean getDetailed() {
            return detailed;
        }
        public DiscoveryNode getReroutedFrom() {
            return reroutedFrom;
        }
        public void reroutedFrom(DiscoveryNode discoveryNode) {
            reroutedFrom = discoveryNode;
        }
        public void readNodeCount(int readNodeCount) {
            if (readNodeCount <= 0) {
                throw new IllegalArgumentException("readNodeCount must be >0, but was [" + readNodeCount + "]");
            }
            this.readNodeCount = readNodeCount;
        }
        public int getReadNodeCount() {
            return readNodeCount;
        }
        public void earlyReadNodeCount(int earlyReadNodeCount) {
            if (earlyReadNodeCount < 0) {
                throw new IllegalArgumentException("earlyReadNodeCount must be >=0, but was [" + earlyReadNodeCount + "]");
            }
            this.earlyReadNodeCount = earlyReadNodeCount;