code: @Override
      public List<WorkflowTask> fromProto(WorkflowTaskPb.WorkflowTask.WorkflowTaskList list) {
          return list.getTasksList().stream().map(this::fromProto).collect(Collectors.toList());
      }
docs: Convert a WorkflowTaskList message wrapper into a {@link List} instance
  with its contents.
  
  @param list an instance of a ProtoBuf message
  @return a list with the contents of the message