{
    ...
    config: {
        type_1: {
            special_config_1: String!
            special_config_2: Boolean
        }
        type_2: {
            special_config_3: [Int]
        }
    }
}

{
  config: ConfigObject,
}

configObject:

{
  type1: Type1Object,
  type2: Type2Object,
}

Type1Object:

{
  special_config_1: String!
  ...
}

{
    ...
    config: ConfigObject,
}

ConfigObject:

{
    type_1__special_config_1: String!,
    type_1__special_config_2: Boolean,
    type_2__special_config_3: [Int],
}