code: def erase_in_line(self, how=0, private=False):
          
          self.dirty.add(self.cursor.y)
          if how == 0:
              interval = range(self.cursor.x, self.columns)
          elif how == 1:
              interval = range(self.cursor.x + 1)
          elif how == 2:
              interval = range(self.columns)
  
          line = self.buffer[self.cursor.y]
          for x in interval:
              line[x] = self.cursor.attrs
docs: Erase a line in a specific way.
  
          Character attributes are set to cursor attributes.
  
          :param int how: defines the way the line should be erased in:
  
              * ``0`` -- Erases from cursor to end of line, including cursor
                position.
              * ``1`` -- Erases from beginning of line to cursor,
                including cursor position.
              * ``2`` -- Erases complete line.
          :param bool private: when ``True`` only characters marked as
                               eraseable are affected **not implemented**.