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<?php
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/**
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* @brief Dynamic Chart Helper with user-supplied results
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* @author <a href='https://www.invisioncommunity.com'>Invision Power Services, Inc.</a>
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* @copyright (c) Invision Power Services, Inc.
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* @license https://www.invisioncommunity.com/legal/standards/
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* @package Invision Community
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* @since 28 Mar 2017
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*/
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namespace IPS\Helpers\Chart;
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/* To prevent PHP errors (extending class does not exist) revealing path */
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if ( !defined( '\IPS\SUITE_UNIQUE_KEY' ) )
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{
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header( ( isset( $_SERVER['SERVER_PROTOCOL'] ) ? $_SERVER['SERVER_PROTOCOL'] : 'HTTP/1.0' ) . ' 403 Forbidden' );
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exit;
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}
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/**
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* Dynamic Chart Helper with user supplied results.
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* This is similar to \IPS\Helpers\Chart\Database but with results supplied manually in user-land code.
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* Useful when you need to merge results from multiple sources.
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*/
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class _Callback extends \IPS\Helpers\Chart\Dynamic
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{
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/**
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* @brief Callback to retrieve results
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*/
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public $callback;
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/**
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* Constructor
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*
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* @param \IPS\Http\Url $url The URL the chart will be displayed on
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* @param callable $callback Callback to fetch results
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* @param string $title Title
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* @param array $options Options
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* @param string $defaultType The default chart type
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* @param string $defaultTimescale The default timescale to use
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* @param array $defaultTimes The default start/end times to use
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* @param string $identifier If there will be more than one chart per page, provide a unique identifier
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* @param \IPS\DateTime|NULL $minimumDate The earliest available date for this chart
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* @see <a href='https://google-developers.appspot.com/chart/interactive/docs/gallery'>Charts Gallery - Google Charts - Google Developers</a>
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* @return void
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*/
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public function __construct( \IPS\Http\Url $url, $callback=NULL, $title='', $options=array(), $defaultType='AreaChart', $defaultTimescale='monthly', $defaultTimes=array( 'start' => 0, 'end' => 0 ), $identifier='', $minimumDate=NULL )
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{
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$this->identifier = \substr( md5( (string) $url ), 0, 6 ) . $identifier;
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$this->callback = $callback;
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parent::__construct( $url, $title, $options, $defaultType, $defaultTimescale, $defaultTimes, $identifier, $minimumDate );
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}
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/**
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* Add Series
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*
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* @param string $name Name
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* @param string $type Type of value
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* @li string
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* @li number
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* @li boolean
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* @li date
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* @li datetime
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* @li timeofday
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* @param bool $filterable If TRUE, will show as a filter option to be toggled on/off
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* @return void
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*/
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public function addSeries( $name, $type, $filterable=TRUE )
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{
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\IPS\Member::loggedIn()->language()->parseOutputForDisplay( $name );
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$filterKey = $name;
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if ( !$filterable or !isset( \IPS\Request::i()->filters[ $this->identifier ] ) or in_array( $filterKey, \IPS\Request::i()->filters[ $this->identifier ] ) )
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{
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if ( $this->type !== 'PieChart' and $this->type !== 'GeoChart' )
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{
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$this->addHeader( $name, $type );
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}
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$this->series[ $filterKey ] = $filterKey;
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if ( $filterable )
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{
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$this->currentFilters[] = $filterKey;
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if ( isset( \IPS\Request::i()->filters[ $this->identifier ] ) )
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{
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$this->url = $this->url->setQueryString( 'filters', array( $this->identifier => $this->currentFilters ) );
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}
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}
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}
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if ( $filterable )
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{
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$this->availableFilters[ $filterKey ] = $name;
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}
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}
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/**
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* Get the chart output
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*
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* @return string
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*/
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public function getOutput()
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{
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/* Init data */
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$data = $this->initData();
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/* Pie Chart */
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if ( $this->type === 'PieChart' or $this->type === 'GeoChart' )
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{
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$rows = call_user_func( $this->callback, $this );
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foreach ( $rows as $k => $v )
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{
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if( count( $this->availableFilters ) and !in_array( $k, $this->currentFilters ) )
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{
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continue;
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}
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$this->addRow( array( 'key' => $this->availableFilters[ $k ], 'value' => $v ) );
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}
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$output = $this->render( $this->type, $this->options, $this->format );
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}
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/* Graph */
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else
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{
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$rows = call_user_func( $this->callback, $this );
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foreach ( $rows as $row )
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{
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$result = array();
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foreach( $this->series as $column )
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{
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$result[ $column ] = $row[ $column ];
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}
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$data[ $row['time'] ] = $result;
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}
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ksort( $data, SORT_NATURAL );
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/* Add to graph */
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$min = NULL;
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$max = NULL;
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foreach ( $data as $time => $d )
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{
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$datetime = new \IPS\DateTime;
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if ( \IPS\Member::loggedIn()->timezone )
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{
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try
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{
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$datetime->setTimezone( new \DateTimeZone( \IPS\Member::loggedIn()->timezone ) );
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}
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catch ( \Exception $e )
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{
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\IPS\Member::loggedIn()->timezone = null;
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\IPS\Member::loggedIn()->save();
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}
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}
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$datetime->setTime( 0, 0, 0 );
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$exploded = explode( '-', $time );
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switch ( $this->timescale )
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{
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case 'none':
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$datetime = \IPS\DateTime::ts( $time );
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break;
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case 'daily':
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$datetime->setDate( (float) $exploded[0], $exploded[1], $exploded[2] );
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//$datetime = $datetime->localeDate();
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break;
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case 'weekly':
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$datetime->setISODate( (float) $exploded[0], $exploded[1] );
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//$datetime = $datetime->localeDate();
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break;
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case 'monthly':
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$datetime->setDate( (float) $exploded[0], $exploded[1], 1 );
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//$datetime = $datetime->format( 'F Y' );
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break;
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}
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if ( empty( $d ) )
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{
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if ( empty( $this->series ) )
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{
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$this->addRow( array( $datetime ) );
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}
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else
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{
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$this->addRow( array_merge( array( $datetime ), array_fill( 0, count( $this->series ), 0 ) ) );
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}
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}
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else
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{
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if( count($d) < count($this->series) )
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{
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$this->addRow( array_merge( array( $datetime ), $d, array_fill( 0, count($this->series) - count($d), 0 ) ) );
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}
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else
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{
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$this->addRow( array_merge( array( $datetime ), $d ) );
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}
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}
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}
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if ( count( $data ) === 1 )
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{
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$this->options['domainAxis']['type'] = 'category';
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}
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$output = $this->render( $this->type, $this->options, $this->format );
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}
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return $output;
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}
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}
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