graph G {
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    rankdir="TB"
    bgcolor="white"
    fontname="Tahoma"

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        fontname="Tahoma"
        color="white"
        fillcolor="deepskyblue2"
        fontcolor="black"
        shape="box"
        style="filled"
        penwidth="1.0"
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        color="#00688b"
        fontcolor="black"
        fontsize="12"
        arrowsize="0.5"
        penwidth="1.0"
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    "[src/bthread/task_group_inl.h]" -- "[src/bthread/bthread.cpp]" [label=" 2 ", penwidth="2", color="#00688b70"];
    "[src/brpc/adaptive_max_concurrency.h]" -- "[src/brpc/server.cpp]" [label=" 2 ", penwidth="2", color="#00688b70"];
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    "[src/brpc/policy/sofa_pbrpc_protocol.cpp]" -- "[src/brpc/policy/hulu_pbrpc_protocol.cpp]" [label=" 2 ", penwidth="2", color="#00688b70"];

}