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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 _fetchAllChildren(self):
 """ Adds a child item for each column """

        childItems = []
        for nr, elem in enumerate(self._sequence):
            childItem = _createFromObject(elem, "elem-{}".format(nr), self.fileName)
            childItem._iconColor = self.iconColor
            childItems.append(childItem)
        return childItems