code: def JoinPath(self, path_segments):
      
      # This is an optimized way to combine the path segments into a single path
      # and combine multiple successive path separators to one.
  
      # Split all the path segments based on the path (segment) separator.
      path_segments = [
          segment.split(self.PATH_SEPARATOR) for segment in path_segments]
  
      # Flatten the sublists into one list.
      path_segments = [
          element for sublist in path_segments for element in sublist]
  
      # Remove empty path segments.
      path_segments = list(filter(None, path_segments))
  
      return '{0:s}{1:s}'.format(
          self.PATH_SEPARATOR, self.PATH_SEPARATOR.join(path_segments))
docs: Joins the path segments into a path.
  
      Args:
        path_segments (list[str]): path segments.
  
      Returns:
        str: joined path segments prefixed with the path separator.