How to migrate tokio from 0.1 to 0.2

help
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use tokio::runtime::TaskExecutor;

unresolved import tokio::runtime::TaskExecutor

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The v0.2 equivalent of TaskExecutor is called Handle.

use tokio::runtime::Handle;
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rt.shutdown_on_idle();

now we don't need to shutdown it manually?

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The runtime is shut down when it is dropped.

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do we need to manually call drop function?

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The runtime is dropped when it goes out of scope.

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that's great , thank you!

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