eosio.assert

{
  "name": "require",
  "base": "",
  "fields": [
    {
      "name": "chain_params_hash",
      "type": "checksum256"
    },
    {
      "name": "manifest_id",
      "type": "checksum256"
    },
    {
      "name": "actions",
      "type": "contract_action[]"
    },
    {
      "name": "abi_hashes",
      "type": "checksum256[]"
    }
  ]
}