code: def _build_templates(self, templates_path):
      # use captions not templates
      if templates_path is None:
          self.templates = None
      else:
          with open(templates_path) as f:
              self.templates = json.load(f)
  
imports: import os, sys
  from collections import OrderedDict
  import random
  from lavis.datasets.datasets.base_dataset import BaseDataset
  from lavis.common.utils import is_serializable
  from PIL import Image
  import numpy
  from tqdm import tqdm
  import json
  import torch
  import copy
label_desc: Use image node_id 10 for calling the Object3dCaptionDataset obj's underlying member method code with example usage: obj._build_templates(templates_path) without return types