old_contents: # internal
  from stix2elevator.options import warn
  
  SOCKET_OPTIONS = [
      "ip_multicast_if",
      "ip_multicast_if2",
      "ip_multicast_loop",
      "ip_tos",
      "so_broadcast",
      "so_conditional_accept",
      "so_keepalive",
      "so_dontroute",
      "so_linger",
      "so_dontlinger",
      "so_oobinline",
      "so_rcvbuf",
      "so_group_priority",
      "so_reuseaddr",
      "so_debug",
      "so_rcvtimeo",
      "so_sndbuf",
      "so_sndtimeo",
      "so_update_accept_context",
      "so_timeout",
      "tcp_nodelay"
  ]
  
  ADDRESS_FAMILY_ENUMERATION = [
      "AF_UNSPEC",
      "AF_INET",
      "AF_IPX",
      "AF_APPLETALK",
      "AF_NETBIOS",
      "AF_INET6",
      "AF_IRDA",
      "AF_BTH",
  ]
  
  PDF_DOC_INFO_DICT_KEYS = {
      "author": "Author",
      "subject": "Subject",
      "keywords": "Keywords",
      "creator": "Creator",
      "producer": "Producer",
      "creationdate": "CreationDate",
      "moddate": "ModDate",
      "trapped": "Trapped"
  }
  
  
  def determine_socket_address_direction(sock_add_1x, obj1x_id):
      if sock_add_1x.ip_address:
          if sock_add_1x.ip_address.is_destination and not sock_add_1x.ip_address.is_source:
              return "dst"
          elif sock_add_1x.ip_address.is_source and not sock_add_1x.ip_address.is_destination:
              return "src"
          else:
              # ((sock_add_1x.ip_address.is_destination and sock_add_1x.ip_address.is_source) or
              # (not sock_add_1x.ip_address.is_destination and not sock_add_1x.ip_address.is_source)):
              warn("Address direction in %s is inconsistent, using 'src'", 614, obj1x_id)
              return "src"
      else:
          warn("Address direction in %s is not provided, using 'src'", 636, obj1x_id)
          return "src"
  
new_contents: # internal
  from stix2elevator.options import warn
  
  SOCKET_OPTIONS = [
      "ip_multicast_if",
      "ip_multicast_if2",
      "ip_multicast_loop",
      "ip_tos",
      "so_broadcast",
      "so_conditional_accept",
      "so_keepalive",
      "so_dontroute",
      "so_linger",
      "so_dontlinger",
      "so_oobinline",
      "so_rcvbuf",
      "so_group_priority",
      "so_reuseaddr",
      "so_debug",
      "so_rcvtimeo",
      "so_sndbuf",
      "so_sndtimeo",
      "so_update_accept_context",
      "so_timeout",
      "tcp_nodelay"
  ]
  
  ADDRESS_FAMILY_ENUMERATION = [
      "AF_UNSPEC",
      "AF_INET",
      "AF_IPX",
      "AF_APPLETALK",
      "AF_NETBIOS",
      "AF_INET6",
      "AF_IRDA",
      "AF_BTH",
  ]
  
  PDF_DOC_INFO_DICT_KEYS = {
      "author": "Author",
      "creationdate": "CreationDate",
      "creator": "Creator",
      "keywords": "Keywords",
      "producer": "Producer",
      "moddate": "ModDate",
      "subject": "Subject",
      "trapped": "Trapped"
  }
  
  
  def determine_socket_address_direction(sock_add_1x, obj1x_id):
      if sock_add_1x.ip_address:
          if sock_add_1x.ip_address.is_destination and not sock_add_1x.ip_address.is_source:
              return "dst"
          elif sock_add_1x.ip_address.is_source and not sock_add_1x.ip_address.is_destination:
              return "src"
          else:
              # ((sock_add_1x.ip_address.is_destination and sock_add_1x.ip_address.is_source) or
              # (not sock_add_1x.ip_address.is_destination and not sock_add_1x.ip_address.is_source)):
              warn("Address direction in %s is inconsistent, using 'src'", 614, obj1x_id)
              return "src"
      else:
          warn("Address direction in %s is not provided, using 'src'", 636, obj1x_id)
          return "src"
  
subject: order of pdf file keys