old_contents: # The slug of the panel to be added to HORIZON_CONFIG. Required.
  PANEL = 'BGPVPN Interconnections'
  # The slug of the dashboard the PANEL associated with. Required.
  PANEL_DASHBOARD = 'project'
  # The slug of the panel group the PANEL is associated with.
  PANEL_GROUP = 'network'
  
  # Python panel class of the PANEL to be added.
  ADD_PANEL = ('bgpvpn_dashboard.'
               'dashboards.project.bgpvpn.panel.BGPVPNInterconnections')
  
new_contents: # The slug of the panel to be added to HORIZON_CONFIG. Required.
  PANEL = 'BGPVPN Interconnections'
  # The slug of the dashboard the PANEL associated with. Required.
  PANEL_DASHBOARD = 'project'
  # The slug of the panel group the PANEL is associated with.
  PANEL_GROUP = 'network'
  
  # Python panel class of the PANEL to be added.
  ADD_PANEL = ('bgpvpn_dashboard.'
               'dashboards.project.bgpvpn.panel.BGPVPNInterconnections')
  
subject: Remove windows-style line breaks