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//
// MCONNTPFetchHeaderOperation.h
// mailcore2
//
// Created by Robert Widmann on 8/13/14.
// Copyright (c) 2014 MailCore. All rights reserved.
//
#ifndef MAILCORE_MCONNTPFETCHHEADEROPERATION_H
#define MAILCORE_MCONNTPFETCHHEADEROPERATION_H
#import <Foundation/Foundation.h>
#import <MailCore/MCONNTPOperation.h>
/**
This is an asynchronous operation that will fetch the header of a message.
@See MCONNTPSession
*/
@class MCOMessageHeader;
NS_ASSUME_NONNULL_BEGIN
@interface MCONNTPFetchHeaderOperation : MCONNTPOperation
/**
Starts the asynchronous fetch operation.
@param completionBlock Called when the operation is finished.
- On success `error` will be nil and `header` will contain the message header
- On failure, `error` will be set with `MCOErrorDomain` as domain and an
error code available in MCOConstants.h, `header` will be nil
*/
- (void) start:(void (^)(NSError * __nullable error, MCOMessageHeader * __nullable header))completionBlock;
@end
NS_ASSUME_NONNULL_END
#endif
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