code: protected static MPResourceArray processMethodBulk(Class clazz, String methodName, String param1, Boolean useCache) throws MPException {
          HashMap<String, String> mapParams = new HashMap<String, String>();
          mapParams.put("param1", param1);
          return processMethodBulk(clazz, methodName, mapParams, useCache);
      }
docs: Process method to call the api, usually used for loadAll and search methods
  
  @param clazz                 a MPBase extended class
  @param methodName            a String with the decorated method to be processed
  @param param1                a String with the arg passed in the call of the method
  @param useCache              a Boolean flag that indicates if the cache must be used
  @return
  @throws MPException