code: public void createGroup(String name, boolean isPrivate) {
  		LinkedMultiValueMap<String, String> params = new LinkedMultiValueMap<String, String>();
  		params.set("name",name);
  		params.set("private", String.valueOf(isPrivate));
  		restTemplate.postForEntity(buildUri("groups"), params, String.class);
  	}
docs: /* (non-Javadoc)
  @see org.springframework.social.yammer.api.GroupOperations#createGroup(java.lang.String, boolean)