text: # -*- coding: utf-8 -*-
  # pylint: disable=unused-import, unused-wildcard-import
  """Web crawlers for constant enumerations."""
  
  # base crawler
  from pcapkit.vendor.default import Vendor
  
  # IANA registration
  from pcapkit.vendor.reg import *
  
  # per protocol
  from pcapkit.vendor.arp import *
  from pcapkit.vendor.ftp import *
  from pcapkit.vendor.hip import *
  from pcapkit.vendor.http import *
  from pcapkit.vendor.ipv4 import *
  from pcapkit.vendor.ipv6 import *
  from pcapkit.vendor.ipx import *
  from pcapkit.vendor.l2tp import *
  from pcapkit.vendor.mh import *
  from pcapkit.vendor.ospf import *
  from pcapkit.vendor.tcp import *
  from pcapkit.vendor.vlan import *
  
  __all__ = [
      # Protocol Registration
      'EtherType', 'LinkType', 'TransType',
      # ARP
      'ARP_Hardware', 'ARP_Operation',
      # FTP
      'FTP_Command', 'FTP_ReturnCode',
      # HIP
      'HIP_Certificate', 'HIP_Cipher', 'HIP_DITypes', 'HIP_ECDSACurve', 'HIP_ECDSALowCurve',
      'HIP_ESPTransformSuite', 'HIP_Group', 'HIP_HIAlgorithm', 'HIP_HITSuite', 'HIP_NATTraversal',
      'HIP_NotifyMessage', 'HIP_Packet', 'HIP_Parameter', 'HIP_Registration', 'HIP_RegistrationFailure',
      'HIP_Suite', 'HIP_Transport',
      # HTTP
      'HTTP_ErrorCode', 'HTTP_Frame', 'HTTP_Setting',
      # IPv4
      'IPv4_ClassificationLevel', 'IPv4_OptionClass', 'IPv4_OptionNumber', 'IPv4_ProtectionAuthority',
      'IPv4_QSFunction', 'IPv4_RouterAlert', 'IPv4_ToSDelay', 'IPv4_ToSECN', 'IPv4_ToSPrecedence',
      'IPv4_ToSReliability', 'IPv4_ToSThroughput', 'IPv4_TSFlag',
      # IPv6
      'IPv6_ExtensionHeader', 'IPv6_Option', 'IPv6_QSFunction', 'IPv6_RouterAlert', 'IPv6_Routing',
      'IPv6_SeedID', 'IPv6_SMFDPDMode', 'IPv6_TaggerID',
      # IPX
      'IPX_Packet', 'IPX_Socket',
      # L2TP
      'L2TP_Type',
      # MH
      'MH_Packet',
      # OSPF
      'OSPF_Authentication', 'OSPF_Packet',
      # TCP
      'TCP_Checksum', 'TCP_Option', 'TCP_MPTCPOption',
      # VLAN
      'VLAN_PriorityLevel',
  ]
  