CD274 and lung cancer: Considering the efficacy prediction value of PD‐L1 and LAG‐3 as well as the resistance monitoring potential of LAG‐3, dual index imaging of 99mTc‐HYNIC‐αLAG‐3 and 125I‐αPD‐L1 was conducted to enable simultaneous visualization of LAG‐3 and PD‐L1, which was the first time to achieve noninvasive immunotyping in lung cancers.