eosio.assert

{
  "name": "stored_chain_params",
  "base": "",
  "fields": [
    {
      "name": "chain_id",
      "type": "checksum256"
    },
    {
      "name": "chain_name",
      "type": "string"
    },
    {
      "name": "icon",
      "type": "checksum256"
    },
    {
      "name": "hash",
      "type": "checksum256"
    },
    {
      "name": "next_unique_id",
      "type": "uint64"
    }
  ]
}