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1. test2.mermaid test2.mermaid

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   flowchart TD

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   A[Hard] -->|Text| B(Round)

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   B --> C

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   C --> D

2. hi hi

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   {

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     "type": "FeatureCollection",

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     "features": [

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       {

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         "type": "Feature",

3. hello.md hello.md

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   # HELLO