code: protected void processForActor(final LmlParser parser, final LmlTag tag, final Actor actor,
              final String rawAttributeData) {
          parser.throwErrorIfStrict("\"" + tag.getTagName()
                  + "\" tag has a table cell attribute, but is not directly in a table. Cannot set table cell attribute value with raw data: "
                  + rawAttributeData + " with attribute processor: " + this);
      }
docs: This method is called if the actor is not in a cell. It should set the property in the actor itself, provided
  that its correct and can be applied. By default, throws an exception if the parser is strict.
  
  @param parser handles LML template parsing.
  @param tag contains raw tag data. Allows to access actor's parent.
  @param actor handled actor instance, casted for convenience.
  @param rawAttributeData unparsed LML attribute data that should be handled by this attribute processor. Common
  data types (string, int, float, boolean, action) are already handled by LML parser implementation, so
  make sure to invoke its methods.