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# -*- coding: utf-8 -*-
# libolm python bindings
# Copyright © 2015-2017 OpenMarket Ltd
# Copyright © 2018 Damir Jelić <poljar@termina.org.uk>
from builtins import bytes, str
from typing import AnyStr
try:
import secrets
URANDOM = secrets.token_bytes # pragma: no cover
except ImportError: # pragma: no cover
from os import urandom
URANDOM = urandom # type: ignore
def to_bytes(string):
# type: (AnyStr) -> bytes
if isinstance(string, bytes):
return string
elif isinstance(string, str):
return bytes(string, "utf-8")
raise TypeError("Invalid type {}".format(type(string)))
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