code: function getBackgroundTasks (defOptions, credentials, token, taskId, callback) {
    var options;
    
    taskId = taskId || '';
    
    if (typeof taskId === 'function') {
      callback = taskId;
      taskId = '';
    }
    
    options = {
      method : 'GET',
      uri : `v1/BackgroundTasks/${taskId}`
    };
    
    return requestWithTokenCheck(defOptions, credentials, token, options, callback);
  }
docs: Retrieve an array of domain background tasks (or a specific task)
  
  {@link https://api.nfieldmr.com/help/api/get-v1-backgroundtasks}
  {@link https://api.nfieldmr.com/help/api/get-v1-backgroundtasks-taskid}