The transformInto method is used for writing data and one of the following types is passed in to write the output

transformInto 方法用于写入数据，并传入以下类型之一来写入输出

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TransformInto invokes the checkOut method on the claim check service through ClaimCheckInvoker, passing to it the claim token and a Boolean flag indicating if clean up needs to be done.

transformInto通过ClaimCheckInvoker调用Claim check服务上的checkOut方法，将其传递给索取令牌和一个指示是否需要执行清理工作的boolean标志。

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