单行文本：just test one

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多行文本：just test one just test two just test three

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单行多值文本： one
two
three

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JSON：{"age":"five","name":"tester"}

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富文本纯文本： map[children:[map[children:[map[type:text value:just test one]] level:1 type:heading] map[children:[map[bold:true italic:true type:text value:just test one]] type:paragraph]] type:root]

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