code: public UriTemplate set(Map<String, Object> values)
      {
          if (values != null && !values.isEmpty())
          {
              this.values.putAll(values);
          }
          return this;
      }
docs: Adds the name/value pairs in the supplied {@link Map} to the collection
  of values within this URI template instance.
  
  @param values
  @return
  @since 1.0