[ 'service' => 'Leaflet', 'attribution' => '© OpenStreetMap contributors. Tiles courtesy of Andy Allan', 'source' => 'https://tile.thunderforest.com/cycle/{z}/{x}/{y}.png?apikey=<%= @thunderforest_key %>', ], 'transport' => [ 'service' => 'Leaflet', 'attribution' => '© OpenStreetMap contributors. Tiles courtesy of Andy Allan', 'source' => 'https://tile.thunderforest.com/transport/{z}/{x}/{y}.png?apikey=<%= @thunderforest_key %>', ], 'oepnv' => [ 'service' => 'Leaflet', 'attribution' => '© OpenStreetMap contributors. Tiles courtesy of MeMoMaps', 'source' => 'https://tileserver.memomaps.de/tilegen/{z}/{x}/{y}.png', ], 'humanitarian' => [ 'service' => 'Leaflet', 'attribution' => '© OpenStreetMap contributors. Tiles style by Humanitarian OpenStreetMap team hosted by OpenStreetMap France', 'source' => 'https://tile.openstreetmap.fr/hot/{z}/{x}/{y}.png' ], ];