/* (non-Javadoc)
  * @see com.basho.riak.client.raw.RawClient#head(java.lang.String, java.lang.String)
  */
 public RiakResponse head(String bucket, String key, FetchMeta fm) throws IOException {
   if (fm != null) {
     fm = FetchMeta.Builder.from(fm).headOnly(true).build();
   } else {
     fm = FetchMeta.head();
   }
   return fetch(bucket, key, fm);
 }
 /*
  * (non-Javadoc)
  *
  * @see
  * com.basho.riak.client.raw.RawClient#fetch(com.basho.riak.newapi.bucket
  * .Bucket, java.lang.String, int)
  */
 public RiakResponse fetch(String bucket, String key, int readQuorum) throws IOException {
   return fetch(bucket, key, FetchMeta.withR(readQuorum));
 }