input: Write a python function to merge LPI and Bare-earth by Algorithm using different methods
  assert merge_lpi_bareearth('cl', 0.94, 1.0, 1.0, 1.0) == (0.94, 1.0)
  assert merge_lpi_bareearth('cn', 0.94, 1.428, 1.0, 1.0) == (1.33832, 1.428)
  assert merge_lpi_bareearth('gn', 0.01719, 1.024, 1.428, 1.0) == (1.48568192, 1.428)
  assert merge_lpi_bareearth('gl', 0.01719, 1.024, 1.0, 1.0) == (1.04119, 1.0)
  assert merge_lpi_bareearth('pl', 1.1224, 0.3157, 1.0, 1.0) == (1.1224, 1.2567)
output: def merge_lpi_bareearth(method, lpi, bare_earth, param1, param2):
      if method == 'cl':
          return (lpi, bare_earth)
      elif method == 'cn':
          return (lpi * bare_earth * param1, bare_earth)
      elif method == 'gn':
          return (lpi * bare_earth * param1 * param2, bare_earth)
      elif method == 'gl':
          return (lpi + bare_earth, bare_earth)
      elif method == 'pl':
          return (lpi, bare_earth + param1)