# Latest

**URL:** https://discourse.nodered.org/latest.md?page=1389

[Latest](https://discourse.nodered.org/latest.md) · [Categories](https://discourse.nodered.org/categories.md) · [Tags](https://discourse.nodered.org/tags.md)

**Page:** 1390

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## [Output Values from MySQL Database to a Chart](https://discourse.nodered.org/t/output-values-from-mysql-database-to-a-chart/760)

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**Author:** [@PushBear](https://discourse.nodered.org/u/PushBear)\
**Replies:** 1\
**Last updated:** [13 June 2018 09:16 UTC](https://discourse.nodered.org/t/output-values-from-mysql-database-to-a-chart/760 "2018-06-13T09:16:02Z")

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Hello, I want to take the Values from my Databse (temperature and date) and Display them into a Chart. \[Database\] I want to know how to loop the Array, so if i add more values i dont have to add them manualy to the ch…

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## [Parse two infos of multiple elements](https://discourse.nodered.org/t/parse-two-infos-of-multiple-elements/781)

<div class="topic-metadata">

**Author:** [@Raychen](https://discourse.nodered.org/u/Raychen)\
**Replies:** 1\
**Last updated:** [13 June 2018 08:50 UTC](https://discourse.nodered.org/t/parse-two-infos-of-multiple-elements/781 "2018-06-13T08:50:36Z")

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Hey, i want to parse this website: https://www.mydealz.de/ I want to parse the deals. For every deal i want to parse the image path (src) and the title. After that i want to show them on a dashboard. I tried a lot, b…

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## [Checkbox in template node](https://discourse.nodered.org/t/checkbox-in-template-node/685)

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**Author:** [@karlbo](https://discourse.nodered.org/u/karlbo)\
**Replies:** 9\
**Last updated:** [12 June 2018 19:08 UTC](https://discourse.nodered.org/t/checkbox-in-template-node/685 "2018-06-12T19:08:36Z")

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Hi there, i have added a checkbox in my editable table, and im successfully sending its status to mysql database via the msg.payload path. what i need now is for the checkbox status to be altered by data from mysql if i…

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## [Is this some sort of spam?](https://discourse.nodered.org/t/is-this-some-sort-of-spam/764)

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**Author:** [@cymplecy](https://discourse.nodered.org/u/cymplecy)\
**Replies:** 1\
**Last updated:** [12 June 2018 15:51 UTC](https://discourse.nodered.org/t/is-this-some-sort-of-spam/764 "2018-06-12T15:51:32Z")

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https://flows.nodered.org/node/prepare-training-data

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## [Proposal: expose subflow id and name for all its nodes](https://discourse.nodered.org/t/proposal-expose-subflow-id-and-name-for-all-its-nodes/663)

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**Author:** [@matys84pl](https://discourse.nodered.org/u/matys84pl)\
**Replies:** 3\
**Last updated:** [12 June 2018 14:05 UTC](https://discourse.nodered.org/t/proposal-expose-subflow-id-and-name-for-all-its-nodes/663 "2018-06-12T14:05:11Z")

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Hi, As far as I know, there’s currently no way to configure an instance of the subflow in the flow and the feature described here https://github.com/node-red/node-red/wiki/Design:-subflows-vNext is probably really far a…

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## [Using the webcam of the laptop](https://discourse.nodered.org/t/using-the-webcam-of-the-laptop/752)

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**Author:** [@Boufahja](https://discourse.nodered.org/u/Boufahja)\
**Replies:** 4\
**Last updated:** [12 June 2018 12:55 UTC](https://discourse.nodered.org/t/using-the-webcam-of-the-laptop/752 "2018-06-12T12:55:47Z")

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How to take a photo with the integrated webcam of my laptop on windows. Wich node i must to use and is there any configuration or any other installations to do ?

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## [Webhook timeout from dialogflow problem](https://discourse.nodered.org/t/webhook-timeout-from-dialogflow-problem/727)

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**Author:** [@scottmclennan](https://discourse.nodered.org/u/scottmclennan)\
**Replies:** 0\
**Last updated:** [10 June 2018 01:35 UTC](https://discourse.nodered.org/t/webhook-timeout-from-dialogflow-problem/727 "2018-06-10T01:35:47Z")

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Does this work? https://qiita.com/HiroyukiYasui/items/6943cc7a636c9d78a9ff

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## [Errors in MongoDB+NodeRED-Watson](https://discourse.nodered.org/t/errors-in-mongodb-nodered-watson/756)

<div class="topic-metadata">

**Author:** [@Hathout](https://discourse.nodered.org/u/Hathout)\
**Replies:** 0\
**Last updated:** [12 June 2018 02:47 UTC](https://discourse.nodered.org/t/errors-in-mongodb-nodered-watson/756 "2018-06-12T02:47:30Z")

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I am using mondo on watson node red. I searched for services on watson and i found that “Compose for MongoDB” is available. I tried to copy the information in the URI into my mongodb node, but nothing is happining. i ca…

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## [ODROID XU4 and NR - just for the thrill](https://discourse.nodered.org/t/odroid-xu4-and-nr-just-for-the-thrill/739)

<div class="topic-metadata">

**Author:** [@krambriw](https://discourse.nodered.org/u/krambriw)\
**Replies:** 3\
**Last updated:** [11 June 2018 19:32 UTC](https://discourse.nodered.org/t/odroid-xu4-and-nr-just-for-the-thrill/739 "2018-06-11T19:32:42Z")

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Kind of tempted, I was thinking about purchasing an ODROID XU4 with an eMMC to give Node-RED something new to play with. Anyone managed to install NR on an Odroid? Is it possible? The thing is said to support Ubuntu 16.…

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## [DHT11 works only on root](https://discourse.nodered.org/t/dht11-works-only-on-root/740)

<div class="topic-metadata">

**Author:** [@mshaz](https://discourse.nodered.org/u/mshaz)\
**Replies:** 2\
**Last updated:** [11 June 2018 16:04 UTC](https://discourse.nodered.org/t/dht11-works-only-on-root/740 "2018-06-11T16:04:49Z")

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DHT11 node only runs on pi root . How do i fix this? How do i boot nodered on root ? Is this the way to do it?

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## [Blink Map marker](https://discourse.nodered.org/t/blink-map-marker/736)

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**Author:** [@mshaz](https://discourse.nodered.org/u/mshaz)\
**Replies:** 1\
**Last updated:** [11 June 2018 13:03 UTC](https://discourse.nodered.org/t/blink-map-marker/736 "2018-06-11T13:03:49Z")

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\[map%20marker\] Hi i have these flows. Top will get input from I/O pin and i want to blink the marker when there’s trigger else it should be grey color. The bottom flow i would want the grey marker to be there when i …

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## [Help with understanding payload](https://discourse.nodered.org/t/help-with-understanding-payload/717)

<div class="topic-metadata">

**Author:** [@NickB](https://discourse.nodered.org/u/NickB)\
**Replies:** 4\
**Last updated:** [11 June 2018 09:59 UTC](https://discourse.nodered.org/t/help-with-understanding-payload/717 "2018-06-11T09:59:38Z")

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Hi, I’m really struggling with understanding the 'msg.payload" with objects. I’m really looking for this since a while, but I really miss a basic link. I’m just going to tell what I trie to do: I’m playing with the h…

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## [How to use JS chart and mysql data in node-red?](https://discourse.nodered.org/t/how-to-use-js-chart-and-mysql-data-in-node-red/701)

<div class="topic-metadata">

**Author:** [@imadouino](https://discourse.nodered.org/u/imadouino)\
**Replies:** 2\
**Last updated:** [11 June 2018 07:32 UTC](https://discourse.nodered.org/t/how-to-use-js-chart-and-mysql-data-in-node-red/701 "2018-06-11T07:32:20Z")

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hi. How i can to use JAVASCRIPT Chart in node-red with dynamic data !!!? (use variables in JS) Thank you for your help.

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## [Deployed flow not updating (node-red-contrib-redis ignoring close event after flow deploy)](https://discourse.nodered.org/t/deployed-flow-not-updating-node-red-contrib-redis-ignoring-close-event-after-flow-deploy/731)

<div class="topic-metadata">

**Author:** [@adarsk](https://discourse.nodered.org/u/adarsk)\
**Replies:** 6\
**Last updated:** [11 June 2018 07:21 UTC](https://discourse.nodered.org/t/deployed-flow-not-updating-node-red-contrib-redis-ignoring-close-event-after-flow-deploy/731 "2018-06-11T07:21:57Z")

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Hi all, I created a flow that reads from a redis list using BLPOP. I configured it to read from localhost:6379. It came up with ETIMEOUT because I don’t have a server on the same machine. I then corrected the server add…

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## [Security System](https://discourse.nodered.org/t/security-system/711)

<div class="topic-metadata">

**Author:** [@cflurin](https://discourse.nodered.org/u/cflurin)\
**Replies:** 3\
**Last updated:** [11 June 2018 02:56 UTC](https://discourse.nodered.org/t/security-system/711 "2018-06-11T02:56:34Z")

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A security system based on the node dynamic state machine dsm. Please take a look at the wiki on Github for more details and a flow to download. https://github.com/cflurin/node-red-contrib-dsm/wiki/Security-System Not…

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## [Can't get Email flow to Work](https://discourse.nodered.org/t/cant-get-email-flow-to-work/728)

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**Author:** [@Bobfla](https://discourse.nodered.org/u/Bobfla)\
**Replies:** 12\
**Last updated:** [10 June 2018 22:12 UTC](https://discourse.nodered.org/t/cant-get-email-flow-to-work/728 "2018-06-10T22:12:19Z")

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I’v tried every thing I could keep getting this message: “YOU HAVE SOME UNUSED CONFIGURATION NODES” It says click for more info but nothing happens. Can run Email from chrome OK so system works. running RPI 3 with No…

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## [Launch a PixyMon camera in iframe on node red dashboard](https://discourse.nodered.org/t/launch-a-pixymon-camera-in-iframe-on-node-red-dashboard/720)

<div class="topic-metadata">

**Author:** [@CHALKHA](https://discourse.nodered.org/u/CHALKHA)\
**Replies:** 8\
**Last updated:** [10 June 2018 16:00 UTC](https://discourse.nodered.org/t/launch-a-pixymon-camera-in-iframe-on-node-red-dashboard/720 "2018-06-10T16:00:23Z")

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Hello there, and I hope all of you are fine. I have pixy camera with robot. The software for this camera is on the local disc and it works on ubuntu gnome terminal without any problem. the matter I want to start this so…

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## [Switch SVG icon based on msg](https://discourse.nodered.org/t/switch-svg-icon-based-on-msg/724)

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**Author:** [@dilepa](https://discourse.nodered.org/u/dilepa)\
**Replies:** 4\
**Last updated:** [10 June 2018 09:48 UTC](https://discourse.nodered.org/t/switch-svg-icon-based-on-msg/724 "2018-06-10T09:48:13Z")

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Hi, I am trying to switch svg icons depending on the status of the msg properties. I want to make use of UI template, but unsure of how to select the svg icons based on input. Its mostly for home automation with icons …

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## [Dot inside query string not converted to underscore](https://discourse.nodered.org/t/dot-inside-query-string-not-converted-to-underscore/722)

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**Author:** [@hutje](https://discourse.nodered.org/u/hutje)\
**Replies:** 1\
**Last updated:** [9 June 2018 18:44 UTC](https://discourse.nodered.org/t/dot-inside-query-string-not-converted-to-underscore/722 "2018-06-09T18:44:34Z")

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When I get a HTTP Request with: https://www.website.nl/webhooks?hub.challenge=0000 This query string consists of hub.challenge. I need to respond with the value of hub.challenge. I can’t respond because the template-no…

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## [Duplicate nodes dynamiquely](https://discourse.nodered.org/t/duplicate-nodes-dynamiquely/709)

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**Author:** [@ardv](https://discourse.nodered.org/u/ardv)\
**Replies:** 1\
**Last updated:** [9 June 2018 15:37 UTC](https://discourse.nodered.org/t/duplicate-nodes-dynamiquely/709 "2018-06-09T15:37:04Z")

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Hello i made a small Weather station application my idea is to read from TCP, the information should look like that: “stationname,firstmesure,secondmesure,thirdmesure”. now in the flow, there should be 3 charts to sho…

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## [Methods of variable sharing compared](https://discourse.nodered.org/t/methods-of-variable-sharing-compared/708)

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**Author:** [@igrowing](https://discourse.nodered.org/u/igrowing)\
**Replies:** 8\
**Last updated:** [9 June 2018 13:16 UTC](https://discourse.nodered.org/t/methods-of-variable-sharing-compared/708 "2018-06-09T13:16:08Z")

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In https://nodered.org/docs/writing-functions.html#flow-context it’s shown how to read context/flow/global shared variables (1). var mv = flow.get('my\_var')||0; The || statement protects the failure in case the variabl…

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## [Can you cancel a trigger node?](https://discourse.nodered.org/t/can-you-cancel-a-trigger-node/712)

<div class="topic-metadata">

**Author:** [@fahrvergnuugen](https://discourse.nodered.org/u/fahrvergnuugen)\
**Replies:** 5\
**Last updated:** [9 June 2018 14:44 UTC](https://discourse.nodered.org/t/can-you-cancel-a-trigger-node/712 "2018-06-09T14:44:08Z")

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I’m using a trigger node as a timer for my basement lights so that they automatically shut off after X minutes. I have three inputs which trigger the lights to turn on (two light switches and a motion detector). If any o…

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## [Dashboard Gauge in Dashboard Template](https://discourse.nodered.org/t/dashboard-gauge-in-dashboard-template/695)

<div class="topic-metadata">

**Author:** [@krambriw](https://discourse.nodered.org/u/krambriw)\
**Replies:** 3\
**Last updated:** [9 June 2018 09:58 UTC](https://discourse.nodered.org/t/dashboard-gauge-in-dashboard-template/695 "2018-06-09T09:58:24Z")

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Well, this might sound strange but is it possible with some code to add/insert a Dashboard Gauge (or other standard Dashboard controls) to a Dashboard Template node?

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## [Sending a set of pulses to a relay by pressing a button on a web page](https://discourse.nodered.org/t/sending-a-set-of-pulses-to-a-relay-by-pressing-a-button-on-a-web-page/518)

<div class="topic-metadata">

**Author:** [@Johans](https://discourse.nodered.org/u/Johans)\
**Replies:** 7\
**Last updated:** [9 June 2018 09:18 UTC](https://discourse.nodered.org/t/sending-a-set-of-pulses-to-a-relay-by-pressing-a-button-on-a-web-page/518 "2018-06-09T09:18:15Z")

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Hi, I’m new and as many of us newcomers still have to learn a lot. I’m in the process of modifying my jukebox AMI-H 200 selection in such a way that I can select a song via a webpage. So far I’ve managed all with a pyt…

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## [Duplicate config-nodes](https://discourse.nodered.org/t/duplicate-config-nodes/690)

<div class="topic-metadata">

**Author:** [@tilleul](https://discourse.nodered.org/u/tilleul)\
**Replies:** 2\
**Last updated:** [9 June 2018 08:11 UTC](https://discourse.nodered.org/t/duplicate-config-nodes/690 "2018-06-09T08:11:23Z")

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It’s possible to copy/paste nodes including all their parameters but is there any way to achieve the same with config-nodes ?

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## [Setup ds18b20 temp sensor to webpage](https://discourse.nodered.org/t/setup-ds18b20-temp-sensor-to-webpage/676)

<div class="topic-metadata">

**Author:** [@polskifacet](https://discourse.nodered.org/u/polskifacet)\
**Replies:** 8\
**Last updated:** [8 June 2018 21:16 UTC](https://discourse.nodered.org/t/setup-ds18b20-temp-sensor-to-webpage/676 "2018-06-08T21:16:18Z")

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Is there an easy way to show temperature from a ds18b20 sensor? Would eventually like to evolve into a general status page to check if things are on or off remotely, temperature, etc.

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## [Nodered Project desapear 2 times - Any help please?](https://discourse.nodered.org/t/nodered-project-desapear-2-times-any-help-please/706)

<div class="topic-metadata">

**Author:** [@vfreire](https://discourse.nodered.org/u/vfreire)\
**Replies:** 0\
**Last updated:** [8 June 2018 20:06 UTC](https://discourse.nodered.org/t/nodered-project-desapear-2-times-any-help-please/706 "2018-06-08T20:06:26Z")

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Hi team, i am a new nodered user and i did a small orchestrator using IBM Watson assistant node + text to Speech in a project. I did a integration with a webpage and facebook. Everthing was going well when my project de…

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## [I need help with a output](https://discourse.nodered.org/t/i-need-help-with-a-output/699)

<div class="topic-metadata">

**Author:** [@ItsLarsBB](https://discourse.nodered.org/u/ItsLarsBB)\
**Replies:** 3\
**Last updated:** [8 June 2018 18:22 UTC](https://discourse.nodered.org/t/i-need-help-with-a-output/699 "2018-06-08T18:22:18Z")

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how can i change the output to #hex \[image\]

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## [Libraries affect load time?](https://discourse.nodered.org/t/libraries-affect-load-time/531)

<div class="topic-metadata">

**Author:** [@RobSenix](https://discourse.nodered.org/u/RobSenix)\
**Replies:** 4\
**Last updated:** [8 June 2018 14:22 UTC](https://discourse.nodered.org/t/libraries-affect-load-time/531 "2018-06-08T14:22:36Z")

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I am running Node-RED on an embedded computer with limited resources. I have developed a set of flows for my application. With all flows loaded into the editor, a browser refresh takes about 20-30 seconds to refresh an…

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## [Raspberry Pi system dashboard](https://discourse.nodered.org/t/raspberry-pi-system-dashboard/264)

<div class="topic-metadata">

**Author:** [@igrowing](https://discourse.nodered.org/u/igrowing)\
**Replies:** 4\
**Last updated:** [8 June 2018 12:33 UTC](https://discourse.nodered.org/t/raspberry-pi-system-dashboard/264 "2018-06-08T12:33:45Z")

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Likely, there are ready examples for full system overview of Raspberry Pi in Node-RED. I couldn’t find one, so I share what I made. Is something missing or needed to be added? \[ { "id": "9f3346aa.d4fc48", …

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