6 <rosparam param="shown_joints">[torso_0_joint, right_arm_0_joint, right_arm_1_joint, right_arm_2_joint, right_arm_3_joint, right_arm_4_joint, right_arm_5_joint, right_arm_6_joint, left_arm_0_joint, left_arm_1_joint, left_arm_2_joint, left_arm_3_joint, left_arm_4_joint, left_arm_5_joint, left_arm_6_joint, head_pan_joint, head_tilt_joint]</rosparam>