docs: @Override
  	protected void putVariables(Map<String, String> variables) {
  		variables.put(ScopeFormat.SCOPE_TASK_VERTEX_ID, vertexId.toString());
  		variables.put(ScopeFormat.SCOPE_TASK_NAME, taskName);
  		variables.put(ScopeFormat.SCOPE_TASK_ATTEMPT_ID, executionId.toString());
  		variables.put(ScopeFormat.SCOPE_TASK_ATTEMPT_NUM, String.valueOf(attemptNumber));
  		variables.put(ScopeFormat.SCOPE_TASK_SUBTASK_INDEX, String.valueOf(subtaskIndex));
  	}