instruction: I want to increase the brightness to 20 because I don't like it as it is.

previous_actions: 

active_application: Moon+ Reader

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      content_description: "12:34 PM"
      text: "12:34 "
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      content_description: "Battery charging, 100 percent."
      depth: 7
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      content_description: "Wifi signal full."
      depth: 11
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windows {
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    right: 1080
    bottom: 2400
  }
  id: 84
  title: "Moon+ Reader"
  window_type: TYPE_APPLICATION
  is_active: true
  is_focused: true
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      is_long_clickable: true
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      class_name: "android.widget.TextView"
      text: "SCENE I. A public place. (13/30)"
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      text: "6.6%"
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      text: "100"
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      text: "12:34"
      depth: 10
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}


assistant: !FUNCTIONCALL{"name": "click", "parameters": {"x": 540, "y": 1200}}