const Range = struct
start: usize
end: usize
fn init(start: usize, end: usize) Range
fn length(self: Range) usize
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const Range = struct { start: usize, end: usize, fn init(start: usize, end: usize) Range { return Range{ .start = start, .end = end, }; } fn length(self: Range) usize { return self.end - self.start; } }