@Override
  public CompletableFuture<Void> createNamespace(NamespaceDescriptor descriptor) {
    return this.<CreateNamespaceRequest, CreateNamespaceResponse> procedureCall(
      RequestConverter.buildCreateNamespaceRequest(descriptor),
      (s, c, req, done) -> s.createNamespace(c, req, done), (resp) -> resp.getProcId(),
      new CreateNamespaceProcedureBiConsumer(descriptor.getName()));
  }
Utility for completing passed TableState {@link CompletableFuture} <code>future</code> using
passed parameters. Sets error or boolean result ('true' if table matches the passed-in
targetState).
hbase-client/src/main/java/org/apache/hadoop/hbase/client/RawAsyncHBaseAdmin.java