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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 clone(self) -> 'ImageBBox':
        "Mimic the behavior of torch.clone for `Image` objects."
        flow = FlowField(self.size, self.flow.flow.clone())
        return self.__class__(flow, scale=False, y_first=False, labels=self.labels, pad_idx=self.pad_idx)