NotebookEditor 
    Represents a notebook editor that is attached to a notebook. Additional properties of the NotebookEditor are available in the proposed API, which will be finalized later.
Properties
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                  The notebook document associated with this notebook editor.
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                  The primary selection in this notebook editor.
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                  All selections in this notebook editor.
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                  The column in which this editor shows.
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                  The current visible ranges in the editor (vertically).
Functions
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                  abstract fun revealRange(range: NotebookRange, revealType: NotebookEditorRevealType = definedExternally)
Scroll as indicated by revealType in order to reveal the given range.