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Solve the following problem using Python, implementing the functions described below, one line at a time
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Description:
 def _merge_a_into_b_simple(self, a, b):
 """Merge config dictionary a into config dictionary b, clobbering the options in b whenever they are also specified in a. Do not do any checking. """

        for k, v in a.items():
            b[k] = v
        return b