def _generate_state_parameter():
    state = _base64.urlsafe_b64encode(_os.urandom(_random_seed_length)).decode(_utf_8)
    code_verifier = _re.sub('[^a-zA-Z0-9-_.,]+', '', state)
    return code_verifier
def _generate_state_parameter():
    state = _base64.urlsafe_b64encode(_os.urandom(_random_seed_length)).decode(_utf_8)
    code_verifier = _re.sub('[^a-zA-Z0-9-_.,]+', , state)
    return code_verifier