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https://github.com/NixOS/nixpkgs.git
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e24a8775a8
adds defaultText for all options that set their default to a path expression using the ubiquitous `cfg` shortcut bindings.
219 lines
7.2 KiB
Nix
219 lines
7.2 KiB
Nix
{ config, lib, options, pkgs, ... }:
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with lib;
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let cfg = config.services.xserver.synaptics;
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opt = options.services.xserver.synaptics;
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tapConfig = if cfg.tapButtons then enabledTapConfig else disabledTapConfig;
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enabledTapConfig = ''
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Option "MaxTapTime" "180"
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Option "MaxTapMove" "220"
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Option "TapButton1" "${builtins.elemAt cfg.fingersMap 0}"
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Option "TapButton2" "${builtins.elemAt cfg.fingersMap 1}"
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Option "TapButton3" "${builtins.elemAt cfg.fingersMap 2}"
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'';
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disabledTapConfig = ''
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Option "MaxTapTime" "0"
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Option "MaxTapMove" "0"
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Option "TapButton1" "0"
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Option "TapButton2" "0"
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Option "TapButton3" "0"
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'';
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pkg = pkgs.xorg.xf86inputsynaptics;
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etcFile = "X11/xorg.conf.d/70-synaptics.conf";
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in {
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options = {
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services.xserver.synaptics = {
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enable = mkOption {
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type = types.bool;
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default = false;
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description = "Whether to enable touchpad support. Deprecated: Consider services.xserver.libinput.enable.";
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};
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dev = mkOption {
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type = types.nullOr types.str;
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default = null;
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example = "/dev/input/event0";
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description =
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''
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Path for touchpad device. Set to null to apply to any
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auto-detected touchpad.
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'';
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};
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accelFactor = mkOption {
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type = types.nullOr types.str;
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default = "0.001";
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description = "Cursor acceleration (how fast speed increases from minSpeed to maxSpeed).";
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};
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minSpeed = mkOption {
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type = types.nullOr types.str;
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default = "0.6";
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description = "Cursor speed factor for precision finger motion.";
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};
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maxSpeed = mkOption {
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type = types.nullOr types.str;
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default = "1.0";
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description = "Cursor speed factor for highest-speed finger motion.";
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};
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scrollDelta = mkOption {
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type = types.nullOr types.int;
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default = null;
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example = 75;
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description = "Move distance of the finger for a scroll event.";
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};
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twoFingerScroll = mkOption {
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type = types.bool;
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default = false;
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description = "Whether to enable two-finger drag-scrolling. Overridden by horizTwoFingerScroll and vertTwoFingerScroll.";
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};
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horizTwoFingerScroll = mkOption {
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type = types.bool;
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default = cfg.twoFingerScroll;
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defaultText = literalExpression "config.${opt.twoFingerScroll}";
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description = "Whether to enable horizontal two-finger drag-scrolling.";
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};
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vertTwoFingerScroll = mkOption {
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type = types.bool;
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default = cfg.twoFingerScroll;
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defaultText = literalExpression "config.${opt.twoFingerScroll}";
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description = "Whether to enable vertical two-finger drag-scrolling.";
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};
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horizEdgeScroll = mkOption {
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type = types.bool;
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default = ! cfg.horizTwoFingerScroll;
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defaultText = literalExpression "! config.${opt.horizTwoFingerScroll}";
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description = "Whether to enable horizontal edge drag-scrolling.";
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};
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vertEdgeScroll = mkOption {
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type = types.bool;
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default = ! cfg.vertTwoFingerScroll;
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defaultText = literalExpression "! config.${opt.vertTwoFingerScroll}";
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description = "Whether to enable vertical edge drag-scrolling.";
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};
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tapButtons = mkOption {
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type = types.bool;
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default = true;
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description = "Whether to enable tap buttons.";
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};
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buttonsMap = mkOption {
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type = types.listOf types.int;
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default = [1 2 3];
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example = [1 3 2];
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description = "Remap touchpad buttons.";
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apply = map toString;
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};
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fingersMap = mkOption {
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type = types.listOf types.int;
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default = [1 2 3];
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example = [1 3 2];
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description = "Remap several-fingers taps.";
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apply = map toString;
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};
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palmDetect = mkOption {
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type = types.bool;
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default = false;
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description = "Whether to enable palm detection (hardware support required)";
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};
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palmMinWidth = mkOption {
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type = types.nullOr types.int;
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default = null;
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example = 5;
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description = "Minimum finger width at which touch is considered a palm";
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};
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palmMinZ = mkOption {
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type = types.nullOr types.int;
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default = null;
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example = 20;
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description = "Minimum finger pressure at which touch is considered a palm";
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};
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horizontalScroll = mkOption {
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type = types.bool;
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default = true;
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description = "Whether to enable horizontal scrolling (on touchpad)";
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};
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additionalOptions = mkOption {
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type = types.str;
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default = "";
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example = ''
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Option "RTCornerButton" "2"
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Option "RBCornerButton" "3"
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'';
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description = ''
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Additional options for synaptics touchpad driver.
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'';
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};
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};
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};
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config = mkIf cfg.enable {
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services.xserver.modules = [ pkg.out ];
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environment.etc.${etcFile}.source =
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"${pkg.out}/share/X11/xorg.conf.d/70-synaptics.conf";
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environment.systemPackages = [ pkg ];
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services.xserver.config =
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''
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# Automatically enable the synaptics driver for all touchpads.
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Section "InputClass"
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Identifier "synaptics touchpad catchall"
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MatchIsTouchpad "on"
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${optionalString (cfg.dev != null) ''MatchDevicePath "${cfg.dev}"''}
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Driver "synaptics"
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${optionalString (cfg.minSpeed != null) ''Option "MinSpeed" "${cfg.minSpeed}"''}
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${optionalString (cfg.maxSpeed != null) ''Option "MaxSpeed" "${cfg.maxSpeed}"''}
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${optionalString (cfg.accelFactor != null) ''Option "AccelFactor" "${cfg.accelFactor}"''}
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${optionalString cfg.tapButtons tapConfig}
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Option "ClickFinger1" "${builtins.elemAt cfg.buttonsMap 0}"
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Option "ClickFinger2" "${builtins.elemAt cfg.buttonsMap 1}"
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Option "ClickFinger3" "${builtins.elemAt cfg.buttonsMap 2}"
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Option "VertTwoFingerScroll" "${if cfg.vertTwoFingerScroll then "1" else "0"}"
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Option "HorizTwoFingerScroll" "${if cfg.horizTwoFingerScroll then "1" else "0"}"
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Option "VertEdgeScroll" "${if cfg.vertEdgeScroll then "1" else "0"}"
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Option "HorizEdgeScroll" "${if cfg.horizEdgeScroll then "1" else "0"}"
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${optionalString cfg.palmDetect ''Option "PalmDetect" "1"''}
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${optionalString (cfg.palmMinWidth != null) ''Option "PalmMinWidth" "${toString cfg.palmMinWidth}"''}
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${optionalString (cfg.palmMinZ != null) ''Option "PalmMinZ" "${toString cfg.palmMinZ}"''}
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${optionalString (cfg.scrollDelta != null) ''Option "VertScrollDelta" "${toString cfg.scrollDelta}"''}
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${if !cfg.horizontalScroll then ''Option "HorizScrollDelta" "0"''
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else (optionalString (cfg.scrollDelta != null) ''Option "HorizScrollDelta" "${toString cfg.scrollDelta}"'')}
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${cfg.additionalOptions}
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EndSection
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'';
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assertions = [
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{
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assertion = !config.services.xserver.libinput.enable;
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message = "Synaptics and libinput are incompatible, you cannot enable both (in services.xserver).";
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}
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];
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};
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}
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