Hi!

   "optional_fields" : [
      [
         "extra.",
         "spi_size",
         "convert_int"
      ],

      [
         "extra.",
         "exchange_type",
         "validate_to_none"
      ],

Does that indicate what type of trade that is?

These two could be given different names to be clearer and better reflect their actual meaning. Maybe adding a prefix `isakmp_`.

Best regards
Sebastian

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Institute for Common Good Technology
gemeinnütziger Kulturverein - nonprofit cultural society
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