old_contents: import re
  import six
  
  _TIMEZONE_REGEX = re.compile(r"^([+-](2[0-3]|[01][0-9])(:?[0-5][0-9])?|Z)$")
  
  TIMEZONES = {
    "UTC": "+00:00",
    "GMT": "+00:00",
    "BST": "+01:00",
    "IST": "+01:00",
    "WET": "+00:00",
    "WEST": "+01:00",
    "CET": "+01:00",
    "CEST": "+02:00",
    "EET": "+02:00",
    "EEST": "+03:00",
    "MSK": "+03:00",
    "MSD": "+04:00",
    "AST": "-04:00",
    "ADT": "-03:00",
    "EST": "-05:00",
    "EDT": "-04:00",
    "CST": "-06:00",
    "CDT": "-05:00",
    "MST": "-07:00",
    "MDT": "-06:00",
    "PST": "-08:00",
    "PDT": "-07:00",
    "HST": "-10:00",
    "AKST": "-09:00",
    "AKDT": "-08:00",
    "AEST": "+10:00",
    "AEDT": "+11:00",
    "ACST": "+09:30",
    "ACDT": "+10:30",
    "AWST": "+08:00"
  }
  
  def is_timezone(value):
    if isinstance(value, six.integer_types) and value <= 840 and value >= -720:
      return True
    if not isinstance(value, six.string_types):
      return False
    if value in TIMEZONES:
      return True
    result_reg_exp = _TIMEZONE_REGEX.match(value) is not None
    return result_reg_exp
  
  # def get_timezone_key(configuration):
  
  def get_timezone_key(configuration):
    for key in configuration:
      if configuration[key]["type"] == "timezone":
        return key
    return None
  
  def timezone_offset_in_sec(timezone):
    if isinstance(timezone, six.integer_types):
      # If the UTC offset is between -16 and +16, consider it as a
      # number of hours to reproduce the platform's moment behavior
      if timezone > -16 and timezone < 16:
        return timezone * 60 * 60
      return timezone * 60
    if timezone in TIMEZONES:
      timezone = TIMEZONES[timezone]
    if len(timezone) > 3:
      timezone = timezone.replace(":", "")
      offset = (int(timezone[-4:-2]) * 60 + int(timezone[-2:])) * 60
    else:
      offset = (int(timezone[-2:]) * 60) * 60
  
    if timezone[0] == "-":
      offset = -offset
  
    return offset
  
  def timezone_offset_in_standard_format(timezone):
    if isinstance(timezone, six.integer_types):
      sign = '+' if timezone >= 0 else '-'
      absolute_offset = abs(timezone)
      if absolute_offset < 16:
        return  '%s%02d:00' % (sign, absolute_offset)
      return '%s%02d:%02d' % (sign, int(absolute_offset / 60),
                              int(absolute_offset % 60))
    return timezone
  
new_contents: import re
  import six
  
  _TIMEZONE_REGEX = re.compile(r"^([+-](2[0-3]|[01][0-9])(:?[0-5][0-9])?|Z)$")
  
  TIMEZONES = {
    "UTC": "+00:00",
    "GMT": "+00:00",
    "BST": "+01:00",
    "IST": "+01:00",
    "WET": "+00:00",
    "WEST": "+01:00",
    "CET": "+01:00",
    "CEST": "+02:00",
    "EET": "+02:00",
    "EEST": "+03:00",
    "MSK": "+03:00",
    "MSD": "+04:00",
    "AST": "-04:00",
    "ADT": "-03:00",
    "EST": "-05:00",
    "EDT": "-04:00",
    "CST": "-06:00",
    "CDT": "-05:00",
    "MST": "-07:00",
    "MDT": "-06:00",
    "PST": "-08:00",
    "PDT": "-07:00",
    "HST": "-10:00",
    "AKST": "-09:00",
    "AKDT": "-08:00",
    "AEST": "+10:00",
    "AEDT": "+11:00",
    "ACST": "+09:30",
    "ACDT": "+10:30",
    "AWST": "+08:00"
  }
  
  def is_timezone(value):
    if isinstance(value, six.integer_types) and value <= 840 and value >= -720:
      return True
    if not isinstance(value, six.string_types):
      return False
    if value in TIMEZONES:
      return True
    result_reg_exp = _TIMEZONE_REGEX.match(value) is not None
    return result_reg_exp
  
  def get_timezone_key(configuration):
    for key in configuration:
      if configuration[key]["type"] == "timezone":
        return key
    return None
  
  def timezone_offset_in_sec(timezone):
    if isinstance(timezone, six.integer_types):
      # If the UTC offset is between -16 and +16, consider it as a
      # number of hours to reproduce the platform's moment behavior
      if timezone > -16 and timezone < 16:
        return timezone * 60 * 60
      return timezone * 60
    if timezone in TIMEZONES:
      timezone = TIMEZONES[timezone]
    if len(timezone) > 3:
      timezone = timezone.replace(":", "")
      offset = (int(timezone[-4:-2]) * 60 + int(timezone[-2:])) * 60
    else:
      offset = (int(timezone[-2:]) * 60) * 60
  
    if timezone[0] == "-":
      offset = -offset
  
    return offset
  
  def timezone_offset_in_standard_format(timezone):
    if isinstance(timezone, six.integer_types):
      sign = "+" if timezone >= 0 else "-"
      absolute_offset = abs(timezone)
      if absolute_offset < 16:
        return  "%s%02d:00" % (sign, absolute_offset)
      return "%s%02d:%02d" % (sign, int(absolute_offset / 60),
                              int(absolute_offset % 60))
    return timezone
  
subject: delete comment / fix lint