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Reference
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.. toctree::
    :maxdepth: 1

    block/index
    conf/index
    core/index
    cryptology/index
    cterm/index
    debug/index
    err/index
    event/index
    geometry/index
    i18n/index
    log/index
    math/index
    mem/index
    network/index
    options/index
    path/index
    random/index
    re/index
    resource/index
    stream/index
    system/index
    text/index
    time/index
    unit/index
    util/index