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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 getitem_in(obj, name):
 """ Finds a key in @obj via a period-delimited string @name. @obj: (#dict) @name: (#str) |.|-separated keys to search @obj in .. obj = {'foo': {'bar': {'baz': True}}} getitem_in(obj, 'foo.bar.baz') .. |True| """

    for part in name.split('.'):
        obj = obj[part]
    return obj