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API Quick Search
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This section introduces the Fluid API structure and usage, to help you quickly get the full picture of the PaddlePaddle Fluid API. This section is divided into the following modules:

..  toctree::
    :maxdepth: 1

    low_level/program_en.rst
    low_level/layers/index_en.rst
    low_level/nets_en.rst
    low_level/optimizer_en.rst
    low_level/backward_en.rst
    low_level/metrics_en.rst
    low_level/model_save_reader_en.rst
    low_level/inference_en.rst
    low_level/memory_optimize_en.rst
    low_level/executor_en.rst
    low_level/parallel_executor_en.rst
    low_level/compiled_program_en.rst
    low_level/parameter_en.rst
    low_level/distributed/index_en.rst
