pub inline fn peekInt(r: *Reader, comptime T: type, endian: std.builtin.Endian) Error!T
pub inline fn peekInt(r: *Reader, comptime T: type, endian: std.builtin.Endian) Error!T { const n = @divExact(@typeInfo(T).int.bits, 8); return std.mem.readInt(T, try r.peekArray(n), endian); }