def correlate(class_, iterable):
        counter = class_()
        for elm in iterable:
            counter(elm)
        return counter
Ensures that the image for this component is present locally. If not,
dataset/ETHPy150Open mikeorr/WebHelpers2/webhelpers2/containers.py/Counter.correlate--crossover with--dataset/ETHPy150Open DevTable/gantryd/runtime/component.py/Component.ensureImage