I simply set coll to the "test_cases" key in the binding object and the code was good to go.
我简单地将coll设置为“test _ cases”绑定对象中的键值，现在代码就准备好运行了。
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This Parc DE la Creueta del Coll is located due north of the center of the city on the northern tip on the other side of Antoni Gaudi I Comet's Parc Giicll.