code: def from_file(cls, h5_file, country_code):
          
          if h5_file.attrs['version'] != VERSION:
              raise ValueError(
                  'mismatched version: file is of version %s, expected %s' % (
                      h5_file.attrs['version'],
                      VERSION,
                  ),
              )
  
          return cls(h5_file[country_code])
docs: Construct from an h5py.File and a country code.
  
          Parameters
          ----------
          h5_file : h5py.File
              An HDF5 daily pricing file.
          country_code : str
              The ISO 3166 alpha-2 country code for the country to read.