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.. py:class:: mindspore.nn.PipelineCell(network, micro_size)
将MiniBatch切分成更细粒度的MicroBatch，用于流水线并行的训练中。
.. note::
micro_size必须大于或等于流水线stage的个数。
**参数：**
- **network** (Cell) - 要修饰的目标网络。
- **micro_size** (int) - MicroBatch大小。