fix unused import warning on windows
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@@ -23,7 +23,7 @@ use std::fmt::Debug;
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use std::fs::{File, OpenOptions};
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use std::fs::{File, OpenOptions};
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use std::hash::Hash;
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use std::hash::Hash;
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use std::io;
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use std::io;
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use std::io::{Cursor, ErrorKind, IsTerminal, Read, Seek, SeekFrom, Write};
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use std::io::{Cursor, ErrorKind, Read, Seek, SeekFrom, Write};
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use std::mem::ManuallyDrop;
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use std::mem::ManuallyDrop;
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use std::net::{Shutdown, TcpStream};
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use std::net::{Shutdown, TcpStream};
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use std::ops::{Deref, DerefMut};
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use std::ops::{Deref, DerefMut};
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@@ -657,6 +657,8 @@ impl Stream {
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#[inline]
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#[inline]
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pub fn stdin(arena: &mut Arena, add_history: bool) -> Stream {
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pub fn stdin(arena: &mut Arena, add_history: bool) -> Stream {
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#[cfg(unix)]
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use std::io::IsTerminal;
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#[cfg(unix)]
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#[cfg(unix)]
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if !std::io::stdin().is_terminal() {
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if !std::io::stdin().is_terminal() {
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use std::os::unix::io::{FromRawFd, RawFd};
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use std::os::unix::io::{FromRawFd, RawFd};
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