Method to

util/misc.py:393–402

(self, device)

        return res

    def to(self, device):
        # type: (Device) -> NestedTensor # noqa
        cast_tensor = self.tensors.to(device)
        mask = self.mask
        if mask is not None:
            assert mask is not None
            cast_mask = mask.to(device)
        else:
            cast_mask = None
        return NestedTensor(cast_tensor, cast_mask)

    def to_img_list_single(self, tensor, mask):
        assert tensor.dim() == 3, 'dim of tensor should be 3 but {}'.format(