Python connection class - Checking if connection is alive

Question

I am constructing a class where I will encapsulate the saspy lib. What I want to develop now is a method to check if the SAS connection still alive, so, if not, I call it to reconnect.

I am looking for a magic method that is executed every time my instance is accessed anytime. Is there any? I am really new on classes construction.

class Sas_session:
    def __init__(self) -> None:
        self.iomhost: str = sasanl.host # type: ignore
        self.iomport: int = sasanl.port # type: ignore
        self.appserver: str = sasanl.appserver # type: ignore
        self.omruser: str = "" # type: ignore
        self.authkey: str = "" # type: ignore
        self.cfgname: str = "iomwin" # type: ignore
        self.timeout: int = 30 # type: ignore
        self.cfgfile = str(Path(__file__).parent / "ConexaoSAS.py")
        self.conectar()
          
    def conectar(self):
        self.session = saspy.SASsession(
            cfgname = self.cfgname,  # type: ignore
            cfgfile = self.cfgfile,  # type: ignore
            omruser = self.omruser,  # type: ignore
            iomhost = self.iomhost,  # type: ignore
            iomport = self.iomport,  # type: ignore
            appserver = self.appserver,  # type: ignore
            authkey = self.authkey,  # type: ignore
            timeout = self.timeout) # type: ignore
        print ('conexão instanciada')
        return self