text: //
  //  OSSRequest.h
  //  AliyunOSSSDK
  //
  //  Created by huaixu on 2018/1/22.
  //  Copyright © 2018年 aliyun. All rights reserved.
  //
  
  #import <Foundation/Foundation.h>
  #import "OSSConstants.h"
  
  /**
   The base class of request to OSS.
   */
  @interface OSSRequest : NSObject
  /**
   Flag of requiring authentication. It's per each request.
   */
  @property (nonatomic, assign) BOOL isAuthenticationRequired;
  
  /**
   the flag of request canceled.
   */
  @property (atomic, assign) BOOL isCancelled;
  
  /**
   the flag of verification about crc64
   */
  @property (nonatomic, assign) OSSRequestCRCFlag crcFlag;
  
  /**
   Cancels the request
   */
  - (void)cancel;
  
  /**
   Gets the query parameters' dictionary according to the properties.
   */
  - (NSDictionary *)requestParams;
  
  @end
  