No way to add company discretionary data to batch header

[dadreggors]

The add_batch method is set using BatchHader but excludes the discretionary header parameter:

data_types.py line 299 (defined field lengths for BatchHeader declares cmpy_dis_data as 20 charachters):

'cmpy_dis_data': 20,

data_types.py line 311 (init for BatchHeader has cmpy-dis-data):

def __init__(self, serv_cls_code='220', company_name='', cmpy_dis_data='',
                 company_id='', std_ent_cls_code='PPD', entry_desc='',
                 desc_date='', eff_ent_date='', orig_stat_code='',
                 orig_dfi_id='', batch_id=''):

builder.py line 63 then seems to ignore that field:

batch_header = BatchHeader(
            serv_cls_code=serv_cls_code,
            batch_id=batch_count,
            company_id=company_id or self.settings['company_id'],
            std_ent_cls_code=std_ent_cls_code,
            entry_desc=entry_desc,
            desc_date='',
            eff_ent_date=eff_ent_date.strftime('%y%m%d'),  # YYMMDD
            orig_stat_code='1',
            orig_dfi_id=self.settings['immediate_dest'][:8],
            company_name=self.settings['immediate_org_name']
        )

Is there another way to add that field?
Can you show it in the example if so?