（二）殴打、伤害残疾人、孕妇、不满十四周岁的人或者七十周岁以上的人的；
returned in case there is no argument or the argument is not a valid
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To be sure, there are also key differences between today and the 1970s that may prevent a repeat of that era’s crisis. For one, the U.S. is now the world’s largest oil producer, topping even Saudi Arabia.
if (chunks === null) {