content: /*
   * Copyright 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 com.alibaba.cloud.ai.studio.runtime.domain.chat;
  
  import com.fasterxml.jackson.annotation.JsonProperty;
  import lombok.AllArgsConstructor;
  import lombok.Builder;
  import lombok.Data;
  import lombok.NoArgsConstructor;
  
  import java.io.Serializable;
  
  /**
   * Represents token usage statistics for chat operations.
   *
   * @since 1.0.0.3
   */
  
  @Data
  @Builder
  @AllArgsConstructor
  @NoArgsConstructor
  public class Usage implements Serializable {
  
  	/** Number of tokens used in the prompt */
  	@JsonProperty("prompt_tokens")
  	private Integer promptTokens;
  
  	/** Number of tokens used in the completion */
  	@JsonProperty("completion_tokens")
  	private Integer completionTokens;
  
  	/** Total number of tokens used */
  	@JsonProperty("total_tokens")
  	private Integer totalTokens;
  
  }
  