old_contents: from haversine import Unit
  
  LYON = (45.7597, 4.8422)
  PARIS = (48.8567, 2.3508)
  NEW_YORK = (40.7033962, -74.2351462)
  LONDON = (51.509865, -0.118092)
  
  EXPECTED_LYON_PARIS = {Unit.KILOMETERS: 392.2172595594006,
              Unit.METERS: 392217.2595594006,
              Unit.MILES: 243.71250609539814,
              Unit.NAUTICAL_MILES: 211.78037755311516,
              Unit.FEET: 1286802.0326751503,
              Unit.INCHES: 15441624.392102592,
              Unit.RADIANS: 0.386810597795104,
              Unit.DEGREES: 22.162614724591847}
  EXPECTED_LYON_NEW_YORK = {Unit.KILOMETERS: 6163.43638211,
              Unit.METERS: 61634363.8211 }
  EXPECTED_PARIS_NEW_YORK = {Unit.KILOMETERS: 5853.32898662,
              Unit.METERS: 58533289.8662 }
  EXPECTED_LONDON_PARIS = {Unit.KILOMETERS: 343.37455271}
  EXPECTED_LONDON_NEW_YORK = {Unit.KILOMETERS: 5586.48447423}
  
new_contents: from haversine import Unit
  
  LYON = (45.7597, 4.8422)
  PARIS = (48.8567, 2.3508)
  NEW_YORK = (40.7033962, -74.2351462)
  LONDON = (51.509865, -0.118092)
  
  EXPECTED_LYON_PARIS = {Unit.KILOMETERS: 392.2172595594006,
              Unit.METERS: 392217.2595594006,
              Unit.MILES: 243.71250609539814,
              Unit.NAUTICAL_MILES: 211.78037755311516,
              Unit.FEET: 1286802.0326751503,
              Unit.INCHES: 15441624.392102592,
              Unit.RADIANS: 0.061562818679421795,
              Unit.DEGREES: 3.5272896852600164}
  EXPECTED_LYON_NEW_YORK = {Unit.KILOMETERS: 6163.43638211,
              Unit.METERS: 61634363.8211 }
  EXPECTED_PARIS_NEW_YORK = {Unit.KILOMETERS: 5853.32898662,
              Unit.METERS: 58533289.8662 }
  EXPECTED_LONDON_PARIS = {Unit.KILOMETERS: 343.37455271}
  EXPECTED_LONDON_NEW_YORK = {Unit.KILOMETERS: 5586.48447423}
  
subject: correct constant values