How to use the yagmail.log.get_logger function in yagmail

def __init__(self, user=None, password=None, host='smtp.gmail.com', port='587',
                 smtp_starttls=True, smtp_set_debuglevel=0, smtp_skip_login=False,
                 encoding="utf-8", oauth2_file=None, soft_email_validation=True, **kwargs):
        self.log = get_logger()
        self.set_logging()
        if smtp_skip_login and user is None:
            user = ''
        elif user is None:
            user = self._find_user_home_path()
        self.user, self.useralias = self._make_addr_alias_user(user)
        self.soft_email_validation = soft_email_validation
        if soft_email_validation and not smtp_skip_login:
            validate_email_with_regex(self.user)
        self.is_closed = None
        self.host = host
        self.port = port
        self.starttls = smtp_starttls
        self.smtp_skip_login = smtp_skip_login
        self.debuglevel = smtp_set_debuglevel
        self.encoding = encoding

def set_logging(self, log_level=logging.ERROR, file_path_name=None):
        """
        This function allows to change the logging backend, either output or file as backend
        It also allows to set the logging level (whether to display only critical/error/info/debug.
        e.g.
        yag = yagmail.SMTP()
        yag.set_logging(yagmail.logging.DEBUG)  # to see everything

        and

        yagmail.set_logging(yagmail.logging.DEBUG, 'somelocalfile.log')

        lastly, a log_level of None will make sure there is no I/O.
        """
        self.log = get_logger(log_level, file_path_name)

def __init__(
        self,
        user=None,
        password=None,
        host="smtp.gmail.com",
        port=None,
        smtp_starttls=None,
        smtp_ssl=True,
        smtp_set_debuglevel=0,
        smtp_skip_login=False,
        encoding="utf-8",
        oauth2_file=None,
        soft_email_validation=True,
        **kwargs
    ):
        self.log = get_logger()
        self.set_logging()
        self.soft_email_validation = soft_email_validation
        if oauth2_file is not None:
            oauth2_info = get_oauth2_info(oauth2_file)
            if user is None:
                user = oauth2_info["email_address"]
        if smtp_skip_login and user is None:
            user = ""
        elif user is None:
            user = find_user_home_path()
        self.user, self.useralias = make_addr_alias_user(user)
        if soft_email_validation:
            validate_email_with_regex(self.user)
        self.is_closed = None
        self.host = host
        self.port = str(port) if port is not None else "465" if smtp_ssl else "587"

def set_logging(self, log_level=logging.ERROR, file_path_name=None):
        """
        This function allows to change the logging backend, either output or file as backend
        It also allows to set the logging level (whether to display only critical/error/info/debug.
        for example::

            yag = yagmail.SMTP()
            yag.set_logging(yagmail.logging.DEBUG)  # to see everything

        and::

            yagmail.set_logging(yagmail.logging.DEBUG, 'somelocalfile.log')

        lastly, a log_level of :py:class:`None` will make sure there is no I/O.
        """
        self.log = get_logger(log_level, file_path_name)