text: import os
  import json
  
  
  def _get_latest_export():
      ranch_dir = os.path.dirname(os.path.split(__file__)[0])
      data_dir = os.path.join(ranch_dir, 'data')
  
      latest_file = ''
      latest_time = 0.0
      for item in os.listdir(data_dir):
          if not item.startswith('address-export.'):
              continue
  
          time = float(os.path.splitext(item)[0][len('address-export.'):])
          if time > latest_time:
              latest_time = time
              latest_file = item
  
      return os.path.join(data_dir, latest_file)
  
  
  def _get_default_specs():
      with open(_get_latest_export(), 'r') as data:
          specs = json.load(data)
      return specs
  