code: public void appendStart(StringBuilder buffer, Object object) {
          if (object != null) {
              appendClassName(buffer, object);
              appendIdentityHashCode(buffer, object);
              appendContentStart(buffer);
              if (fieldSeparatorAtStart) {
                  appendFieldSeparator(buffer);
              }
          }
      }
docs: <p>Append to the <code>toString</code> the start of data indicator.</p>
  
  @param buffer the <code>StringBuilder</code> to populate
  @param object the <code>Object</code> to build a <code>toString</code> for