Abstract out cell behaviors to a base class.
Abstract out cell behaviors to a base class.
jupyter/jupyter-js-cells,jupyter/jupyter-js-cells,jupyter/jupyter-js-cells,jupyter/jupyter-js-cells,jasongrout/jupyter-js-cells,jupyter/jupyter-js-cells,jasongrout/jupyter-js-cells,jasongrout/jupyter-js-cells,jasongrout/jupyter-js-cells,jasongrout/jupyter-js-cells