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mattneubmattneub
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add collapse/expand example
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‎bk2ch04p183animationAndAutolayout4/Expandable.xcodeproj/project.pbxproj

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‎bk2ch04p183animationAndAutolayout4/Expandable/AppDelegate.h

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#import <UIKit/UIKit.h>
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@interface AppDelegate : UIResponder <UIApplicationDelegate>
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@property (strong, nonatomic) UIWindow *window;
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@end
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‎bk2ch04p183animationAndAutolayout4/Expandable/AppDelegate.m

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#import "AppDelegate.h"
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@interface AppDelegate ()
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@end
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@implementation AppDelegate
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- (BOOL)application:(UIApplication *)application didFinishLaunchingWithOptions:(NSDictionary *)launchOptions {
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// Override point for customization after application launch.
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return YES;
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}
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@end

‎bk2ch04p183animationAndAutolayout4/Expandable/Base.lproj/LaunchScreen.xib

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<?xml version="1.0" encoding="UTF-8" standalone="no"?>
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<document type="com.apple.InterfaceBuilder3.CocoaTouch.XIB" version="3.0" toolsVersion="6214" systemVersion="14A314h" targetRuntime="iOS.CocoaTouch" propertyAccessControl="none" useAutolayout="YES" launchScreen="YES" useTraitCollections="YES">
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<dependencies>
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<plugIn identifier="com.apple.InterfaceBuilder.IBCocoaTouchPlugin" version="6207"/>
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<capability name="Constraints with non-1.0 multipliers" minToolsVersion="5.1"/>
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</dependencies>
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<objects>
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<placeholder placeholderIdentifier="IBFilesOwner" id="-1" userLabel="File's Owner"/>
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<placeholder placeholderIdentifier="IBFirstResponder" id="-2" customClass="UIResponder"/>
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<view contentMode="scaleToFill" id="iN0-l3-epB">
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<rect key="frame" x="0.0" y="0.0" width="480" height="480"/>
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<autoresizingMask key="autoresizingMask" widthSizable="YES" heightSizable="YES"/>
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<subviews>
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<label opaque="NO" clipsSubviews="YES" userInteractionEnabled="NO" contentMode="left" horizontalHuggingPriority="251" verticalHuggingPriority="251" text=" Copyright (c) 2015 Kevin Sylvestre. All rights reserved." textAlignment="center" lineBreakMode="tailTruncation" baselineAdjustment="alignBaselines" minimumFontSize="9" translatesAutoresizingMaskIntoConstraints="NO" id="8ie-xW-0ye">
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<rect key="frame" x="20" y="439" width="441" height="21"/>
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<fontDescription key="fontDescription" type="system" pointSize="17"/>
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<color key="textColor" cocoaTouchSystemColor="darkTextColor"/>
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<nil key="highlightedColor"/>
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</label>
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<label opaque="NO" clipsSubviews="YES" userInteractionEnabled="NO" contentMode="left" horizontalHuggingPriority="251" verticalHuggingPriority="251" text="Expandable" textAlignment="center" lineBreakMode="middleTruncation" baselineAdjustment="alignBaselines" minimumFontSize="18" translatesAutoresizingMaskIntoConstraints="NO" id="kId-c2-rCX">
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<rect key="frame" x="20" y="140" width="441" height="43"/>
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<fontDescription key="fontDescription" type="boldSystem" pointSize="36"/>
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<color key="textColor" cocoaTouchSystemColor="darkTextColor"/>
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<nil key="highlightedColor"/>
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</label>
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</subviews>
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<color key="backgroundColor" white="1" alpha="1" colorSpace="custom" customColorSpace="calibratedWhite"/>
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<constraints>
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<constraint firstItem="kId-c2-rCX" firstAttribute="centerY" secondItem="iN0-l3-epB" secondAttribute="bottom" multiplier="1/3" constant="1" id="5cJ-9S-tgC"/>
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<constraint firstAttribute="centerX" secondItem="kId-c2-rCX" secondAttribute="centerX" id="Koa-jz-hwk"/>
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<constraint firstAttribute="bottom" secondItem="8ie-xW-0ye" secondAttribute="bottom" constant="20" id="Kzo-t9-V3l"/>
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<constraint firstItem="8ie-xW-0ye" firstAttribute="leading" secondItem="iN0-l3-epB" secondAttribute="leading" constant="20" symbolic="YES" id="MfP-vx-nX0"/>
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<constraint firstAttribute="centerX" secondItem="8ie-xW-0ye" secondAttribute="centerX" id="ZEH-qu-HZ9"/>
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<constraint firstItem="kId-c2-rCX" firstAttribute="leading" secondItem="iN0-l3-epB" secondAttribute="leading" constant="20" symbolic="YES" id="fvb-Df-36g"/>
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</constraints>
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<nil key="simulatedStatusBarMetrics"/>
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<freeformSimulatedSizeMetrics key="simulatedDestinationMetrics"/>
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<point key="canvasLocation" x="548" y="455"/>
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</view>
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</objects>
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</document>

‎bk2ch04p183animationAndAutolayout4/Expandable/Base.lproj/Main.storyboard

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<?xml version="1.0" encoding="UTF-8" standalone="no"?>
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<document type="com.apple.InterfaceBuilder3.CocoaTouch.Storyboard.XIB" version="3.0" toolsVersion="7702" systemVersion="14D136" targetRuntime="iOS.CocoaTouch" propertyAccessControl="none" useAutolayout="YES" useTraitCollections="YES" initialViewController="vXZ-lx-hvc">
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<dependencies>
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<plugIn identifier="com.apple.InterfaceBuilder.IBCocoaTouchPlugin" version="7701"/>
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<capability name="Constraints to layout margins" minToolsVersion="6.0"/>
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</dependencies>
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<scenes>
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<!--View Controller-->
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<scene sceneID="ufC-wZ-h7g">
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<objects>
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<viewController id="vXZ-lx-hvc" customClass="ViewController" customModule="Expandable" customModuleProvider="target" sceneMemberID="viewController">
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<layoutGuides>
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<viewControllerLayoutGuide type="top" id="jyV-Pf-zRb"/>
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<viewControllerLayoutGuide type="bottom" id="2fi-mo-0CV"/>
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</layoutGuides>
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<view key="view" contentMode="scaleToFill" id="kh9-bI-dsS">
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<rect key="frame" x="0.0" y="0.0" width="600" height="600"/>
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<autoresizingMask key="autoresizingMask" flexibleMaxX="YES" flexibleMaxY="YES"/>
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<subviews>
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<view clipsSubviews="YES" contentMode="scaleToFill" translatesAutoresizingMaskIntoConstraints="NO" id="b7f-dR-P5z" userLabel="View - Content">
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<rect key="frame" x="0.0" y="40" width="600" height="257"/>
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<subviews>
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<label opaque="NO" userInteractionEnabled="NO" contentMode="left" horizontalHuggingPriority="251" verticalHuggingPriority="251" text="Header" textAlignment="center" lineBreakMode="tailTruncation" numberOfLines="0" baselineAdjustment="alignBaselines" adjustsFontSizeToFit="NO" translatesAutoresizingMaskIntoConstraints="NO" id="NcT-xh-dCy" userLabel="Label - Header">
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<rect key="frame" x="16" y="16" width="568" height="77"/>
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<color key="backgroundColor" red="0.90196079015731812" green="0.90196079015731812" blue="0.90196079015731812" alpha="1" colorSpace="calibratedRGB"/>
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<fontDescription key="fontDescription" type="system" pointSize="64"/>
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<color key="textColor" red="0.0" green="0.0" blue="0.0" alpha="1" colorSpace="calibratedRGB"/>
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<nil key="highlightedColor"/>
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</label>
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<label opaque="NO" userInteractionEnabled="NO" contentMode="left" horizontalHuggingPriority="251" verticalHuggingPriority="251" text="This text can expand and collapse" textAlignment="center" lineBreakMode="tailTruncation" numberOfLines="0" baselineAdjustment="alignBaselines" adjustsFontSizeToFit="NO" translatesAutoresizingMaskIntoConstraints="NO" id="d71-04-56d" userLabel="Label - Random">
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<rect key="frame" x="16" y="109" width="568" height="39"/>
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<fontDescription key="fontDescription" type="system" pointSize="32"/>
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<color key="textColor" red="0.0" green="0.0" blue="0.0" alpha="1" colorSpace="calibratedRGB"/>
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<nil key="highlightedColor"/>
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</label>
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<label opaque="NO" userInteractionEnabled="NO" contentMode="left" horizontalHuggingPriority="251" verticalHuggingPriority="251" text="Footer" textAlignment="center" lineBreakMode="tailTruncation" numberOfLines="0" baselineAdjustment="alignBaselines" adjustsFontSizeToFit="NO" translatesAutoresizingMaskIntoConstraints="NO" id="W6F-ti-jtW" userLabel="Label - Footer">
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<rect key="frame" x="16" y="164" width="568" height="77"/>
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<color key="backgroundColor" red="0.80000001192092896" green="0.80000001192092896" blue="0.80000001192092896" alpha="1" colorSpace="calibratedRGB"/>
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<fontDescription key="fontDescription" type="system" pointSize="64"/>
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<color key="textColor" red="0.0" green="0.0" blue="0.0" alpha="1" colorSpace="calibratedRGB"/>
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<nil key="highlightedColor"/>
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</label>
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</subviews>
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<color key="backgroundColor" red="1" green="0.50196081399917603" blue="0.0" alpha="1" colorSpace="calibratedRGB"/>
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<constraints>
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<constraint firstItem="d71-04-56d" firstAttribute="leading" secondItem="b7f-dR-P5z" secondAttribute="leading" constant="16" id="7mQ-Lo-F5d"/>
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<constraint firstAttribute="height" priority="250" constant="257" id="ACc-zt-wgN"/>
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<constraint firstItem="W6F-ti-jtW" firstAttribute="leading" secondItem="b7f-dR-P5z" secondAttribute="leading" constant="16" id="S3V-a7-nRN"/>
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<constraint firstAttribute="trailing" secondItem="NcT-xh-dCy" secondAttribute="trailing" constant="16" id="Url-hR-du1"/>
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<constraint firstItem="NcT-xh-dCy" firstAttribute="top" secondItem="b7f-dR-P5z" secondAttribute="top" constant="16" id="eQE-Me-OZP"/>
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<constraint firstItem="d71-04-56d" firstAttribute="top" secondItem="NcT-xh-dCy" secondAttribute="bottom" constant="16" id="fsW-FE-8ZI"/>
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<constraint firstItem="W6F-ti-jtW" firstAttribute="top" secondItem="d71-04-56d" secondAttribute="bottom" constant="16" id="oH7-29-KnE"/>
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<constraint firstItem="NcT-xh-dCy" firstAttribute="leading" secondItem="b7f-dR-P5z" secondAttribute="leading" constant="16" id="rml-f0-A21"/>
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<constraint firstAttribute="trailing" secondItem="d71-04-56d" secondAttribute="trailing" constant="16" id="scz-73-FEC"/>
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<constraint firstAttribute="bottom" secondItem="W6F-ti-jtW" secondAttribute="bottom" constant="16" id="w6U-HI-STy"/>
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<constraint firstAttribute="trailing" secondItem="W6F-ti-jtW" secondAttribute="trailing" constant="16" id="xY2-yv-uQB"/>
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</constraints>
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</view>
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<button opaque="NO" contentMode="scaleToFill" contentHorizontalAlignment="center" contentVerticalAlignment="center" buttonType="roundedRect" lineBreakMode="middleTruncation" translatesAutoresizingMaskIntoConstraints="NO" id="RkA-qd-feC">
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<rect key="frame" x="16" y="337" width="568" height="30"/>
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<state key="normal" title="Toggle Section">
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<color key="titleShadowColor" white="0.5" alpha="1" colorSpace="calibratedWhite"/>
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</state>
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<connections>
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<action selector="toggleButtonSelector:" destination="vXZ-lx-hvc" eventType="touchUpInside" id="9P8-t2-giV"/>
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</connections>
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</button>
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<button opaque="NO" contentMode="scaleToFill" contentHorizontalAlignment="center" contentVerticalAlignment="center" buttonType="roundedRect" lineBreakMode="middleTruncation" translatesAutoresizingMaskIntoConstraints="NO" id="74d-Ly-mGp">
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<rect key="frame" x="16" y="391" width="568" height="30"/>
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<state key="normal" title="Toggle Contents">
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<color key="titleShadowColor" white="0.5" alpha="1" colorSpace="calibratedWhite"/>
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</state>
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<connections>
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<action selector="toggleContents:" destination="vXZ-lx-hvc" eventType="touchUpInside" id="Nr7-Go-s3j"/>
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</connections>
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</button>
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</subviews>
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<color key="backgroundColor" white="1" alpha="1" colorSpace="custom" customColorSpace="calibratedWhite"/>
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<constraints>
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<constraint firstItem="b7f-dR-P5z" firstAttribute="top" secondItem="jyV-Pf-zRb" secondAttribute="bottom" constant="20" id="JVb-nY-dWE"/>
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<constraint firstItem="RkA-qd-feC" firstAttribute="leading" secondItem="kh9-bI-dsS" secondAttribute="leading" constant="16" id="aK6-yG-ZTS"/>
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<constraint firstAttribute="trailing" secondItem="RkA-qd-feC" secondAttribute="trailing" constant="16" id="fUp-27-6n9"/>
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<constraint firstItem="74d-Ly-mGp" firstAttribute="top" secondItem="RkA-qd-feC" secondAttribute="bottom" constant="24" id="hc6-6J-N6V"/>
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<constraint firstItem="74d-Ly-mGp" firstAttribute="leading" secondItem="kh9-bI-dsS" secondAttribute="leadingMargin" id="ic6-7e-vrz"/>
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<constraint firstAttribute="trailingMargin" secondItem="74d-Ly-mGp" secondAttribute="trailing" id="jVE-Hn-cKj"/>
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<constraint firstAttribute="trailing" secondItem="b7f-dR-P5z" secondAttribute="trailing" id="rfE-kd-6lB"/>
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<constraint firstItem="b7f-dR-P5z" firstAttribute="leading" secondItem="kh9-bI-dsS" secondAttribute="leading" id="vs3-zc-4U4"/>
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<constraint firstItem="RkA-qd-feC" firstAttribute="top" secondItem="b7f-dR-P5z" secondAttribute="bottom" constant="40" id="yLK-6d-qzl"/>
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</constraints>
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</view>
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<connections>
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<outlet property="bottomInternalConstraint" destination="w6U-HI-STy" id="SeC-qj-emF"/>
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<outlet property="randomLabel" destination="d71-04-56d" id="Bzb-07-BQQ"/>
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<outlet property="sectionHeightConstraint" destination="ACc-zt-wgN" id="6Cy-9c-QHd"/>
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</connections>
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</viewController>
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<placeholder placeholderIdentifier="IBFirstResponder" id="x5A-6p-PRh" sceneMemberID="firstResponder"/>
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</objects>
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</scene>
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</scenes>
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</document>

‎bk2ch04p183animationAndAutolayout4/Expandable/Expandable-Bridging-Header.h

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//
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// Use this file to import your target's public headers that you would like to expose to Swift.
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//
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‎bk2ch04p183animationAndAutolayout4/Expandable/Images.xcassets/AppIcon.appiconset/Contents.json

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{
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"images" : [
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{
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"idiom" : "iphone",
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"size" : "29x29",
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"scale" : "2x"
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},
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{
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"idiom" : "iphone",
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"size" : "29x29",
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"scale" : "3x"
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},
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{
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"idiom" : "iphone",
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"size" : "40x40",
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"scale" : "2x"
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},
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{
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"idiom" : "iphone",
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"size" : "40x40",
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"scale" : "3x"
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},
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{
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"idiom" : "iphone",
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"size" : "60x60",
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"scale" : "2x"
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},
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{
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"idiom" : "iphone",
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"size" : "60x60",
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"scale" : "3x"
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}
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],
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"info" : {
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"version" : 1,
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"author" : "xcode"
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}
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}

‎bk2ch04p183animationAndAutolayout4/Expandable/Info.plist

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<?xml version="1.0" encoding="UTF-8"?>
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<!DOCTYPE plist PUBLIC "-//Apple//DTD PLIST 1.0//EN" "http://www.apple.com/DTDs/PropertyList-1.0.dtd">
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<plist version="1.0">
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<dict>
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<key>CFBundleDevelopmentRegion</key>
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<string>en</string>
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<key>CFBundleExecutable</key>
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<string>$(EXECUTABLE_NAME)</string>
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<key>CFBundleIdentifier</key>
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<string>com.ksylvest.$(PRODUCT_NAME:rfc1034identifier)</string>
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<key>CFBundleInfoDictionaryVersion</key>
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<string>6.0</string>
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<key>CFBundleName</key>
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<string>$(PRODUCT_NAME)</string>
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<key>CFBundlePackageType</key>
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<string>APPL</string>
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<key>CFBundleShortVersionString</key>
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<string>1.0</string>
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<key>CFBundleSignature</key>
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<string>????</string>
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<key>CFBundleVersion</key>
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<string>1</string>
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<key>LSRequiresIPhoneOS</key>
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<true/>
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<key>UILaunchStoryboardName</key>
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<string>LaunchScreen</string>
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<key>UIMainStoryboardFile</key>
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<string>Main</string>
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<key>UIRequiredDeviceCapabilities</key>
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<array>
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<string>armv7</string>
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</array>
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<key>UISupportedInterfaceOrientations</key>
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<array>
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<string>UIInterfaceOrientationPortrait</string>
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<string>UIInterfaceOrientationLandscapeLeft</string>
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<string>UIInterfaceOrientationLandscapeRight</string>
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</array>
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</dict>
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</plist>

‎bk2ch04p183animationAndAutolayout4/Expandable/ViewController.swift

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import UIKit
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class ViewController : UIViewController {
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@IBOutlet var randomLabel : UILabel!
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@IBOutlet var sectionHeightConstraint : NSLayoutConstraint!
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@IBOutlet var bottomInternalConstraint : NSLayoutConstraint!
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var collapsed = false
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let texts = ["This text can expand and collapse", "The quick brown fox jumps over the lazy dog. Then he went on vacation... Then he had a drink..."]
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var long = false
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@IBAction func toggleContents(sender: AnyObject!) {
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self.long = !self.long
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self.randomLabel.text = self.texts[self.long ? 1 : 0]
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}
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@IBAction func toggleButtonSelector (sender:AnyObject!) {
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self.collapsed = !self.collapsed
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if self.collapsed {
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self.sectionHeightConstraint.constant = 10
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self.sectionHeightConstraint.priority = 999
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NSLayoutConstraint.deactivateConstraints([self.bottomInternalConstraint])
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UIView.animateWithDuration(1) {
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self.view.layoutIfNeeded()
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}
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} else {
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self.sectionHeightConstraint.priority = 250
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NSLayoutConstraint.activateConstraints([self.bottomInternalConstraint])
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UIView.animateWithDuration(1) {
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self.view.layoutIfNeeded()
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}
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}
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}
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}

‎bk2ch04p183animationAndAutolayout4/Expandable/main.m

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//
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// main.m
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// Expandable
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//
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// Created by Kevin Sylvestre on 2015-04-17.
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// Copyright (c) 2015 Kevin Sylvestre. All rights reserved.
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//
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#import <UIKit/UIKit.h>
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#import "AppDelegate.h"
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int main(int argc, char * argv[]) {
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@autoreleasepool {
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return UIApplicationMain(argc, argv, nil, NSStringFromClass([AppDelegate class]));
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}
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}

‎bk2ch04p183animationAndAutolayout4/ExpandableTests/ExpandableTests.m

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//
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// ExpandableTests.m
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// ExpandableTests
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//
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// Created by Kevin Sylvestre on 2015-04-17.
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// Copyright (c) 2015 Kevin Sylvestre. All rights reserved.
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//
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#import <UIKit/UIKit.h>
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#import <XCTest/XCTest.h>
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@interface ExpandableTests : XCTestCase
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@end
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@implementation ExpandableTests
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- (void)setUp {
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[super setUp];
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// Put setup code here. This method is called before the invocation of each test method in the class.
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}
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- (void)tearDown {
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// Put teardown code here. This method is called after the invocation of each test method in the class.
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[super tearDown];
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}
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- (void)testExample {
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// This is an example of a functional test case.
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XCTAssert(YES, @"Pass");
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}
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- (void)testPerformanceExample {
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// This is an example of a performance test case.
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[self measureBlock:^{
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// Put the code you want to measure the time of here.
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}];
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}
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@end

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