public TableOperationSpanBuilder setContainerOperations(final Operation... operations) {
    final List<String> ops = Arrays.stream(operations).map(op -> op == null ? unknown : op.name())
      .sorted().distinct().collect(Collectors.toList());
    attributes.put(CONTAINER_DB_OPERATIONS_KEY, ops);
    return this;
  }
Construct {@link Span} instances originating from "table operations" -- the verbs in our public
API that interact with data in tables.
hbase-client/src/main/java/org/apache/hadoop/hbase/client/trace/TableOperationSpanBuilder.java