How to verify authentication in sleekxmpp

[jyoti.karajagi209]

Hi, 

I am new to Sleekxmpp. my requirement is to verify the FCM credentials. If i use self.connection.process() then it will triggers the auth_success/auth_failed events then i get the self.auth value as True, Below is my code. Is there anyways to verify the FCM credentials without process() ? Please help me

Note : I am calling verify_credentials from main thread.

from sleekxmpp import ClientXMPP

class GCM:

       self.conn=None

       self.auth=False

      def open_conn(jid, password):

           self.conn=ClientXMPP(jid,password, sasl_mech="PLAIN")

           self.conn.add_event_handler("auth_success", self.auth_success)

           self.conn.add_event_handler("failed_auth", self.auth_failed)

          self.conn.connect((host,port), use_ssl=True)

     def auth_success(self,event):

           self.auth=True

     def auth_failed(self,event):

           self.auth=False

     def verify_credentials(jid, password):

           self.open_conn(jid,password)

           if self.auth:

               print("success")

           else:

               print("failed auth")

c=GCM()

a=c.verify_credenatils(jid,password)

print(a)