exec_resize method will be create two tcp connect please help me see see

my code

    def set_exec_resize(self,exec_id,height,width):
        try:
            self.docker_client.exec_resize(exec_id,height,width)
        except Exception as e:
            return ("[+] ERROR %s" % e)
        print "[-]set exec_resize:", commands.getoutput("netstat -anlp|grep 10.100.49.64")
        return True

    def start_exec(self, exec_id):
        sock = self.docker_client.exec_start(exec_id, tty=True, socket=True)
        print "[-]start exec :", commands.getoutput("netstat -anlp|grep 10.100.49.64")
        return sock

  self.ssh = f.start_exec(exec_id=exec_id)
  f.set_exec_resize(exec_id=exec_id, height=height, width=width)

this will be create two tcp connect; and I can not close the exec_resize method create tcp connect ;that will be Leaked connection ；
I use tls connect will have the problem；not tls no problem；

Start with the Python client's exec_start and exec_resize entry points shown in the report, then compare their TCP behavior with and without TLS. Verify how the resize request's connection is managed and reproduce the two-connection case; done means exec_resize no longer leaves a leaked connection, with coverage for the TLS case if the repository has relevant tests.