How to use the ofxparse.ofxparse.OfxPreprocessedFile function in ofxparse

abNet2222Gross3333
"""))
        expect = """OFXHEADER:100
DATA:OFXSGML
VERSION:102
SECURITY:NONE
ENCODING:USASCII
CHARSET:1252
COMPRESSION:NONE
OLDFILEUID:NONE
NEWFILEUID:NONE

abNet2222Gross3333
"""
        ofx_file = OfxPreprocessedFile(fh)
        data = ofx_file.fh.read()
        self.assertEqual(data, expect)

def __init__(self, fh):
        super(OfxPreprocessedFile, self).__init__(fh)

        if self.fh is None:
            return

        ofx_string = self.fh.read()

        # find all closing tags as hints
        closing_tags = [t.upper() for t in re.findall(r'(?i)',
                                                      ofx_string)]

        # close all tags that don't have closing tags and
        # leave all other data intact
        last_open_tag = None
        tokens = re.split(r'(?i)()', ofx_string)
        new_fh = StringIO()
        for token in tokens:

statement class and continue to run. Note: the library does not
        guarantee that no exceptions will be raised to the caller, only
        that statements will include bad transactions (which are marked).

        '''
        cls.fail_fast = fail_fast
        cls.custom_date_format = custom_date_format

        if not hasattr(file_handle, 'seek'):
            raise TypeError(six.u('parse() accepts a seek-able file handle\
                            , not %s' % type(file_handle).__name__))

        ofx_obj = Ofx()

        # Store the headers
        ofx_file = OfxPreprocessedFile(file_handle)
        ofx_obj.headers = ofx_file.headers
        ofx_obj.accounts = []
        ofx_obj.signon = None

        ofx = soup_maker(ofx_file.fh)
        if ofx.find('ofx') is None:
            raise OfxParserException('The ofx file is empty!')

        sonrs_ofx = ofx.find('sonrs')
        if sonrs_ofx:
            ofx_obj.signon = cls.parseSonrs(sonrs_ofx)

        stmttrnrs = ofx.find('stmttrnrs')
        if stmttrnrs:
            stmttrnrs_trnuid = stmttrnrs.find('trnuid')
            if stmttrnrs_trnuid: