code: private <T extends Model> T setRaw(String attributeName, Object value) {
          if (manageTime && attributeName.equalsIgnoreCase("created_at")) {
              throw new IllegalArgumentException("cannot set 'created_at'");
          }
          metaModelLocal.checkAttribute(attributeName);
  
          if (willAttributeModifyModel(attributeName, value)) {
              attributes.put(attributeName, value);
              dirtyAttributeNames.add(attributeName);
          }
          return (T) this;
      }
docs: Sets raw value of an attribute, without applying conversions.