instruction: I want to use the TeraBox app to view the Techfile PDF file.

previous_actions: 

active_application: TeraBox

screen_description: windows {
  bounds_in_screen {
    top: 145
    right: 1440
    bottom: 3120
  }
  id: 401
  title: "TeraBox"
  window_type: TYPE_APPLICATION
  is_active: true
  is_focused: true
  tree {
    nodes {
      bounds_in_screen {
        top: 145
        right: 1440
        bottom: 3120
      }
      class_name: "android.widget.FrameLayout"
    }
    nodes {
      bounds_in_screen {
        top: 145
        right: 1440
        bottom: 3036
      }
      class_name: "android.widget.LinearLayout"
      depth: 1
    }
    nodes {
      bounds_in_screen {
        top: 3036
        right: 1440
        bottom: 3120
      }
      class_name: "android.view.View"
      depth: 1
    }
    nodes {
      bounds_in_screen {
        top: 145
        right: 1440
        bottom: 3036
      }
      class_name: "android.widget.FrameLayout"
      depth: 2
    }
    nodes {
      bounds_in_screen {
        top: 145
        right: 1440
        bottom: 3036
      }
      class_name: "android.widget.RelativeLayout"
      depth: 3
    }
    nodes {
      bounds_in_screen {
        left: 1440
        top: 145
        right: 1440
        bottom: 145
      }
      class_name: "android.widget.FrameLayout"
      is_clickable: true
      is_focusable: true
      depth: 4
    }
    nodes {
      bounds_in_screen {
        top: 145
        right: 1440
        bottom: 3036
      }
      class_name: "android.widget.FrameLayout"
      depth: 4
    }
    nodes {
      bounds_in_screen {
        top: 145
        right: 1440
        bottom: 3036
      }
      class_name: "android.webkit.WebView"
      is_clickable: true
      is_focusable: true
      depth: 5
    }
    nodes {
      bounds_in_screen {
        top: 145
        right: 1440
        bottom: 3036
      }
      class_name: "android.widget.FrameLayout"
      depth: 5
    }
    nodes {
      bounds_in_screen {
        top: 145
        right: 1440
        bottom: 3036
      }
      class_name: "android.widget.FrameLayout"
      depth: 6
    }
    nodes {
      bounds_in_screen {
        top: 310
        right: 1440
        bottom: 2870
      }
      class_name: "android.view.View"
      depth: 7
    }
  }
}


assistant: !FUNCTIONCALL{"name": "wait", "parameters": {}}