import { AppState, ContentRef, selectors } from "@nteract/core"; import { Output } from "@nteract/outputs"; import Immutable from "immutable"; import React from "react"; import { connect } from "react-redux"; import { SandboxFrame } from "./SandboxFrame"; // Adapted from https://github.com/nteract/nteract/blob/main/packages/stateful-components/src/outputs/index.tsx // to add support for sandboxing using