code: def get_basis_family(basis_name, data_dir=None):
      '''Lookup a family by a basis set name
      '''
  
      data_dir = fix_data_dir(data_dir)
      bs_data = _get_basis_metadata(basis_name, data_dir)
      return bs_data['family'f get_basis_family(basis_name, data_dir=None):
      '''Lookup a family by a basis set name
      '''
  
      data_dir = fix_data_dir(data_dir)
      bs_data = _get_basis_metadata(basis_name, data_dir)
      return bs_data['family']
docs: Lookup a family by a basis set name