How to use the phonenumbers.util.prnt function in phonenumbers

prnt(__doc__, file=sys.stderr)
            sys.exit(1)
        elif opt in ("-v", "--var"):
            varprefix = arg
        elif opt in ("-f", "--flat"):
            per_locale = False
        elif opt in ("-s", "--sep"):
            separator = arg
        elif opt in ("-c", "--chunks"):
            chunks = int(arg)
        else:
            prnt("Unknown option %s" % opt, file=sys.stderr)
            prnt(__doc__, file=sys.stderr)
            sys.exit(1)
    if len(args) != 3:
        prnt(__doc__, file=sys.stderr)
        sys.exit(1)
    if per_locale:
        prefixdata = load_locale_prefixdata(args[0], separator=separator)
    else:
        prefixdata = {}
        load_locale_prefixdata_file(prefixdata, args[0], separator=separator)
    output_prefixdata_code(prefixdata, args[1], args[2], varprefix, per_locale, chunks)

chunk_longest = output_prefixdata_chunk(
            chunk_data, chunk_file, module_prefix, per_locale)
        if chunk_longest > longest_prefix:
            longest_prefix = chunk_longest

    with open(outfilename, "w") as outfile:
        if per_locale:
            prnt(PREFIXDATA_LOCALE_FILE_PROLOG % {'module': module_prefix}, file=outfile)
        else:
            prnt(PREFIXDATA_FILE_PROLOG % {'module': module_prefix}, file=outfile)
        prnt(COPYRIGHT_NOTICE, file=outfile)
        prnt("%s_DATA = {}" % varprefix, file=outfile)
        for chunk_num in range(total_chunks):
            prnt("from .data%d import data" % chunk_num, file=outfile)
            prnt("%s_DATA.update(data)" % varprefix, file=outfile)
        prnt("del data", file=outfile)
        prnt("%s_LONGEST_PREFIX = %d" % (varprefix, longest_prefix), file=outfile)

def output_prefixdata_chunk(prefixdata, outfilename, module_prefix, per_locale):
    with open(outfilename, "w") as outfile:
        longest_prefix = 0
        if per_locale:
            prnt(PREFIXDATA_LOCALE_FILE_PROLOG % {'module': module_prefix}, file=outfile)
        else:
            prnt(PREFIXDATA_FILE_PROLOG % {'module': module_prefix}, file=outfile)
        prnt(COPYRIGHT_NOTICE, file=outfile)
        prnt("data = {", file=outfile)
        for prefix in sorted(prefixdata.keys()):
            if len(prefix) > longest_prefix:
                longest_prefix = len(prefix)
            if per_locale:
                prnt(" '%s':%s," % (prefix, _stable_dict_repr(prefixdata[prefix])), file=outfile)
            else:
                prnt(" '%s':%s," % (prefix, _tuple_repr(prefixdata[prefix])), file=outfile)
        prnt("}", file=outfile)
    return longest_prefix

# Build up a map from country code (int) to list of region codes (ISO 3166-1 alpha 2)
            country_code_to_region_code = {}
            for country_id in sorted(self.territory.keys()):
                terrobj = self.territory[country_id]
                if terrobj.o.country_code is not None:
                    country_code = int(terrobj.o.country_code)
                    if country_code not in country_code_to_region_code:
                        country_code_to_region_code[country_code] = []
                    if terrobj.o.main_country_for_code:
                        country_code_to_region_code[country_code].insert(0, terrobj.o.id)
                    else:
                        country_code_to_region_code[country_code].append(terrobj.o.id)

            # Emit the mapping from country code to region code if nonempty.
            if len(country_code_to_region_code.keys()) > 0:
                prnt(_COUNTRY_CODE_TO_REGION_CODE_PROLOG, file=outfile)
                prnt("_COUNTRY_CODE_TO_REGION_CODE = {", file=outfile)
                for country_code in sorted(country_code_to_region_code.keys()):
                    country_ids = country_code_to_region_code[country_code]
                    prnt('    %d: ("%s",),' % (country_code, '", "'.join(country_ids)), file=outfile)
                prnt("}", file=outfile)

def emit_metadata_for_region_py(self, region, region_filename, module_prefix):
        """Emit Python code generating the metadata for the given region"""
        terrobj = self.territory[region]
        with open(region_filename, "w") as outfile:
            prnt(_REGION_METADATA_PROLOG % {'region': terrobj.identifier(), 'module': module_prefix}, file=outfile)
            prnt("PHONE_METADATA_%s = %s" % (terrobj.identifier(), terrobj), file=outfile)

with open(outfilename, "w") as outfile:
        longest_prefix = 0
        if per_locale:
            prnt(PREFIXDATA_LOCALE_FILE_PROLOG % {'module': module_prefix}, file=outfile)
        else:
            prnt(PREFIXDATA_FILE_PROLOG % {'module': module_prefix}, file=outfile)
        prnt(COPYRIGHT_NOTICE, file=outfile)
        prnt("data = {", file=outfile)
        for prefix in sorted(prefixdata.keys()):
            if len(prefix) > longest_prefix:
                longest_prefix = len(prefix)
            if per_locale:
                prnt(" '%s':%s," % (prefix, _stable_dict_repr(prefixdata[prefix])), file=outfile)
            else:
                prnt(" '%s':%s," % (prefix, _tuple_repr(prefixdata[prefix])), file=outfile)
        prnt("}", file=outfile)
    return longest_prefix

chunk_keys = sorted_keys[chunk_index:chunk_index + chunk_size]
        chunk_data = {}
        for key in chunk_keys:
            chunk_data[key] = prefixdata[key]
        chunk_file = os.path.join(outdirname, 'data%d.py' % chunk_num)
        chunk_longest = output_prefixdata_chunk(
            chunk_data, chunk_file, module_prefix, per_locale)
        if chunk_longest > longest_prefix:
            longest_prefix = chunk_longest

    with open(outfilename, "w") as outfile:
        if per_locale:
            prnt(PREFIXDATA_LOCALE_FILE_PROLOG % {'module': module_prefix}, file=outfile)
        else:
            prnt(PREFIXDATA_FILE_PROLOG % {'module': module_prefix}, file=outfile)
        prnt(COPYRIGHT_NOTICE, file=outfile)
        prnt("%s_DATA = {}" % varprefix, file=outfile)
        for chunk_num in range(total_chunks):
            prnt("from .data%d import data" % chunk_num, file=outfile)
            prnt("%s_DATA.update(data)" % varprefix, file=outfile)
        prnt("del data", file=outfile)
        prnt("%s_LONGEST_PREFIX = %d" % (varprefix, longest_prefix), file=outfile)