code: def build(self, *args, **Kwargs):
      pass
  
file_path: mmf/tests/data/user_dir/datasets/always_one.py
imports: from mmf.common.registry import registry
  from mmf.datasets.base_dataset_builder import BaseDatasetBuilder
  from tests.test_utils import NumbersDataset
label_desc: Use image node_id 2 for calling the AlwaysOneBuilder obj's underlying member method code with example usage: obj.build() without return types