code: public static <T> RelationalFunctionCall<T> relationalFunctionCall(Class<? extends T> type, String function, Object... args) {
          return new RelationalFunctionCall<T>(type, function, args);
      }
docs: Create a new RelationalFunctionCall for the given function and arguments
  
  @param type type
  @param function function name
  @param args arguments
  @param <T>
  @return relational function call