@Override
  public CompletableFuture<Void> modifyColumnFamily(TableName tableName,
    ColumnFamilyDescriptor columnFamily) {
    return this.<ModifyColumnRequest, ModifyColumnResponse> procedureCall(tableName,
      RequestConverter.buildModifyColumnRequest(tableName, columnFamily, ng.getNonceGroup(),
        ng.newNonce()),
      (s, c, req, done) -> s.modifyColumn(c, req, done), (resp) -> resp.getProcId(),
      new ModifyColumnFamilyProcedureBiConsumer(tableName));
  }
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