OwnedReadHalf shutdown shows the method shutdown exists for struct OwnedReadHalf, but its trait bounds were not satisfied

[jesses2025smith]

        // TODO the method `shutdown` exists for struct `OwnedReadHalf`, but its trait bounds were not satisfied
        // if let Err(e) = self.reader.shutdown().await {
        //    rsutil::warn!("close socket reader: {}", e);
        // }

        if let Err(e) = self.writer.lock().await.shutdown().await {
            rsutil::warn!("close socket writer: {}", e);
        }

I don't understand only why the reader.shutdown will compile and report an error

tokio-1.45.0\src\net\tcp\split_owned.rs:35:1
   |
35 | pub struct OwnedReadHalf {
   | ------------------------ doesn't satisfy `OwnedReadHalf: tokio::io::AsyncWriteExt` or `OwnedReadHalf: tokio::io::AsyncWrite`
   |
   = note: the following trait bounds were not satisfied:
           `OwnedReadHalf: tokio::io::AsyncWrite`
           which is required by `OwnedReadHalf: tokio::io::AsyncWriteExt`

[Darksonn]

The shutdown method is from AsyncWrite, not AsyncRead. You can't use it with OwnedReadHalf. Instead, use it with OwnedWriteHalf.

[jesses2025smith]

[Darksonn]

Imports don't matter. You can't call shutdown on OwnedReadHalf because it's not AsyncWrite.

[jesses2025smith]

IDE prompts that this method is available.
It's the problem about IDE?

[Darksonn]

Yes, I suppose it's an IDE problem. You can't shut down readers, only writers.