code: def _align(self, size):
      return int(math.ceil(float(size) / 4) * 4)
  
file_path: nnabla/python/src/nnabla/utils/converter/nnablart/nnb.py
imports: import collections
  import math
  import struct
  import nnabla.utils.converter
  import numpy
  import yaml
  from .resolver import Resolver
  from .utils import create_nnabart_info
  from .utils import preprocess_for_exporter
  from .utils import revise_buffer_size
label_desc: Use image node_id 1 for calling the NnbExporter obj's underlying member method code with example usage: obj._align(size) and returns: int