'Given a string, ensure that it is in a consistent format.  Bills
can be written as HF 123, HF123, or HF0123.
Historically, HF 123 has been used for top level bill id.
(HF0123 is a better id and should be considered in the future)'

def make_bill_id(self, bill):

    if (bill is None):
        return bill
    return re.sub('(\\w+?)0*(\\d+)', '\\1    \\2', bill)
