Function changeCellType

changeCellType(
    notebook: Notebook,
    value: string,
    translator?: ITranslator,
): void
Change the selected cell type(s).
Parameters
- notebook: Notebook
  The target notebook widget.
- value: string
  The target cell type.
- Optionaltranslator: ITranslator
  The application translator.
  
  Notes
  It should preserve the widget mode. This action can be undone. The existing selection will be cleared. Any cells converted to markdown will be unrendered.
Returns void
- Defined in packages/notebook/src/actions.tsx:550