text: # -*- coding: utf-8 -*-
  import dash
  import dash_core_components as dcc
  import dash_html_components as html
  import yfiles_component as yfiles
  
  external_stylesheets = ['https://codepen.io/chriddyp/pen/bWLwgP.css']
  
  app = dash.Dash(__name__, external_stylesheets=external_stylesheets)
  app.css.config.serve_locally = True
  app.scripts.config.serve_locally = True
  
  app.layout = html.Div(
      className='graph-component-container',
      children=[
          yfiles.ExampleComponent(
              layoutMode='Hierarchic',
              data=[{
                      'level': 0,
                      'children': [{
                          'level': 1,
                          'children': [{'level': 2}, {'level': 2}, {'level': 2}, {'level': 2}, {'level': 2}, {'level': 2}]
                          }, {
                          'level': 1,
                          'children': [{'level': 2}, {'level': 2}, {'level': 2}, {'level': 2}]
                          }, {
                          'level': 1,
                          'children': [{
                              'level': 2,
                              'children': [{'level': 3}, {'level': 3}]
                              }, {
                              'level': 2,
                              'children': [{'level': 3}, {'level': 3}]
                          }]
                      }]
                  }]
          )
  ])
  
  if __name__ == '__main__':
      app.run_server(debug=True)