human
Solve the following python programming problem given the following code:
def _run_scenario(self, scenario_func, snapshot = None) : 
    reservation = self.ec2_client.run_instances (self.image_id, instance_type = self.instance_type, key_name = self.keypair.name, security_groups = (self.sec_group_name,)) 
    self.addResourceCleanUp (self.destroy_reservation, reservation) 
    instance = reservation.instances [0] 
    LOG.info ('state: %s', snapshot.state) 
    if (instance.state != 'running') : 
        self.assertInstanceStateWait (instance, 'running') 
zone = instance.placement 
    volume = self.ec2_client.create_volume (1, zone, snapshot = snapshot) 
    self.addResourceCleanUp (self.destroy_volume_wait, volume) 
    self.assertVolumeStatusWait (volume, 'available') 
    ip_address = self._prepare_public_ip (instance) 
    ssh = remote_client.RemoteClient (ip_address, self.ssh_user, pkey = self.keypair.material) 
    part_lines = ssh.get_partitions ().split ('
') 
    volume.attach (instance.id, ('/dev/' + self.volume_attach_name)) 
    def _volume_state() : 
        volume.update (validate = True) 
        return volume.status 
self.assertVolumeStatusWait (_volume_state, 'in-use') 
    boto_wait.re_search_wait (_volume_state, 'in-use') 
    def _part_state() : 
        current = ssh.get_partitions ().split ('
') 
        if (len (current) > len (part_lines)) : 
            return 1 
if (len (current) < len (part_lines)) : 
            return (- 1) 
return 0 
boto_wait.state_wait (_part_state, 1) 
    part_lines_new = ssh.get_partitions ().split ('
') 
    self.volume_name = utils.detect_new_volume (part_lines, part_lines_new) 
    part_lines = part_lines_new 
    self._correct_ns_if_needed (ssh) 
    snapshot = scenario_func (ssh, volume.id) 
    instance.stop () 
    LOG.info ('state: %s', instance.state) 
    if (instance.state != 'stopped') : 
        self.assertInstanceStateWait (instance, 'stopped') 
return snapshot 

    
    

    Fix the buggy line: LOG.info ('state: %s', snapshot.state)
assistant
#Here is Python code to fix the buggy line: LOG.

LOG.info ('state: %s', instance.state)