<SYSTEM_TASK:>
Solve the following problem using Python, implementing the functions described below, one line at a time
<END_TASK>
<USER_TASK:>
Description:
 def get_endpoint(self):
 """ Find the issuer ID and from it construct the service endpoint :return: Service endpoint """

        try:
            _iss = self.service_context.issuer
        except AttributeError:
            _iss = self.endpoint

        if _iss.endswith('/'):
            return OIDCONF_PATTERN.format(_iss[:-1])
        else:
            return OIDCONF_PATTERN.format(_iss)