content: /**
   * Copyright (C) 2024 AIDC-AI
   *
   * Licensed under the Apache License, Version 2.0 (the "License");
   * you may not use this file except in compliance with the License.
   * You may obtain a copy of the License at
   *
   *     http://www.apache.org/licenses/LICENSE-2.0
   *
   * Unless required by applicable law or agreed to in writing, software
   * distributed under the License is distributed on an "AS IS" BASIS,
   * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
   * See the License for the specific language governing permissions and
   * limitations under the License.
   */
  package com.alibaba.langengine.core.prompt;
  
  import com.alibaba.langengine.core.messages.BaseMessage;
  import lombok.Data;
  
  import java.io.Serializable;
  import java.util.List;
  import java.util.Map;
  
  /**
   * Base class for message prompt templates.
   *
   * @author xiaoxuan.lp
   */
  @Data
  public abstract class BaseMessagePromptTemplate implements Serializable {
  
      /**
       * Format messages from kwargs. Should return a list of BaseMessages.
       *
       * @return
       */
      public abstract List<BaseMessage> formatMessages(Map<String, Object> args);
  
      /**
       * Input variables for this prompt template.
       *
       * @return
       */
      public abstract List<String> getInputVariables();
  }
  