code: def output_notebook(
          d3js_url="//d3js.org/d3.v3.min",
          requirejs_url="//cdnjs.cloudflare.com/ajax/libs/require.js/2.1.10/require.min.js",
          html_template=None
  ):
      
  
      if html_template is None:
          html_template = read_lib('html', 'setup')
  
      setup_html = populate_template(
          html_template,
          d3js=d3js_url,
          requirejs=requirejs_url
      )
  
      display_html(setup_html)
      return
docs: Import required Javascript libraries to Jupyter Notebook.