How to get IK response for user provided pose in MoveIt(Baxter)

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Below is the code snippet of ik_service_client.py provided for Baxter SDK

rospy.init_node("rsdk_ik_service_client")
ns = "ExternalTools/" + limb + "/PositionKinematicsNode/IKService"
iksvc = rospy.ServiceProxy(ns, SolvePositionIK)
ikreq = SolvePositionIKRequest()
hdr = Header(stamp=rospy.Time.now(), frame_id='base')
poses = {
    'left': PoseStamped(
        header=hdr,
        pose=Pose(
            position=Point(
                x=0.657579481614,
                y=0.851981417433,
                z=0.0388352386502,
            ),
            orientation=Quaternion(
                x=-0.366894936773,
                y=0.885980397775,
                z=0.108155782462,
                w=0.262162481772,
            ),
        ),
    ),

}

ikreq.pose_stamp.append(poses[limb])
try:
    rospy.wait_for_service(ns, 5.0)
    resp = iksvc(ikreq)
except (rospy.ServiceException, rospy.ROSException), e:
    rospy.logerr("Service call failed: %s" % (e,))
    return 1
resp_seeds = struct.unpack('<%dB' % len(resp.result_type),
                           resp.result_type)


if (resp_seeds[0] != resp.RESULT_INVALID):
    seed_str = {
                ikreq.SEED_USER: 'User Provided Seed',
                ikreq.SEED_CURRENT: 'Current Joint Angles',
                ikreq.SEED_NS_MAP: 'Nullspace Setpoints',
               }.get(resp_seeds[0], 'None')

Whenever I get results, it is always form the ikreq.SEED_CURRENT"'Current JointAngles'. How can I retreieve the ikreq result form the user provided input?