code: public Object get(String strKey)
      {
          Object data = null;
          if (this.getMessageFieldDesc(strKey) != null)
              data = this.getMessageFieldDesc(strKey).get();
          else if (this.getMessage() != null)
              data = this.getMessage().getNative(this.getFullKey(strKey));
          return data;
      }
docs: Convenience method - Get the data at this key.
  @param trxMessage The raw internal trx message.
  @return The new Internal message with additional/refined data.