I want to use bigtop-select

[lee]

Hello, our company is planning to use Ranger recently, but during the pre 
research process, we found that there are fewer documents and many of them are 
outdated. Of course, it is also possible that there is a problem with the way I 
obtained the documents. Do you have the latest documentation on usage and 
related concepts
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李杰
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leedd1...@163.com
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