docs: public static MaterialBatchgetResult batchget_material(String access_token,String type,int offset,int count){
  		HttpUriRequest httpUriRequest = RequestBuilder.post()
  					.setHeader(jsonHeader)
  					.setUri(BASE_URI+"/cgi-bin/material/batchget_material")
  					.addParameter(PARAM_ACCESS_TOKEN, API.accessToken(access_token))
  					.setEntity(new StringEntity("{\"type\":\""+type+"\",\"offset\":"+offset+",\"count\":"+count+"}",Charset.forName("utf-8")))
  					.build();
  		return LocalHttpClient.executeJsonResult(httpUriRequest,MaterialBatchgetResult.class);
  	}