original_string: protected function distanceBetweenPoints(
          PointInterface $head,
          PointInterface $tail
      ) {
          return sqrt(self::pythagorus($head, $tail));
      }
code: protected function distanceBetweenPoints(
          PointInterface $head,
          PointInterface $tail
      ) {
          return sqrt(self::pythagorus($head, $tail));
      }
code_tokens: protected function distanceBetweenPoints ( PointInterface $ head , PointInterface $ tail ) { return sqrt ( self :: pythagorus ( $ head , $ tail ) ) ; }
docstring: Calculate the distance between to points
  
  @param PointInterface $head First point
  @param PointInterface $tail Last point
  
  @return float
docstring_tokens: Calculate the distance between to points