content: /*
   * Copyright 2024-2025 the original author or authors.
   *
   * 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
   *
   *      https://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 io.agentscope.core.memory;
  
  import io.agentscope.core.message.Msg;
  import io.agentscope.core.state.StateModule;
  import java.util.List;
  
  /**
   * Interface for memory components that store and manage conversation history.
   *
   * Memory extends StateModule to provide state persistence capabilities,
   * allowing conversation history to be saved and restored through sessions.
   */
  public interface Memory extends StateModule {
  
      void addMessage(Msg message);
  
      List<Msg> getMessages();
  
      void clear();
  }
  