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use fmt;
const LEFT: &str = "left";
const RIGHT: &str = "right";
// WINDOW
//use std::str::FromStr;
//// TODO: window
//impl FromStr for Range {
//type Err = ();
//fn from_str(s: &str) -> Result<Self, Self::Err> {
//unimplemented!();
//match s {
//LEFT => Ok(Self::Left),
//RIGHT => Ok(Self::Right),
//_ => Err(()),
//}
//}
//}