public List<Task> batchPollTasksByTaskType(
            String taskType, String workerId, int count, int timeoutInMillisecond) {
        return Lists.newArrayList(
                batchPollTasksByTaskTypeAsync(taskType, workerId, count, timeoutInMillisecond));
    }
Perform a batch poll for tasks by task type. Batch size is configurable by count.

@param taskType Type of task to poll for
@param workerId Name of the client worker. Used for logging.
@param count Maximum number of tasks to be returned. Actual number of tasks returned can be
    less than this number.
@param timeoutInMillisecond Long poll wait timeout.
@return List of tasks awaiting to be executed.
grpc-client/src/main/java/com/netflix/conductor/client/grpc/TaskClient.java