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             ___      ______   _    _     _  _   
    ___     / _ \\   /_____// | || | ||  | \| || 
   /   ||  / //\ \\  `____ `  | || | ||  |  ' || 
  | [] || |  ___  || /___//   | \\_/ ||  | .  || 
   \__ || |_||  |_|| `__ `     \____//   |_|\_|| 
    -|_|| `-`   `-`  /_//       `---`    `-` -`  
     `-`             `-`

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Text this: GIS functions in R for handling complex regions