@interface MFAttachmentUtilities : NSObject + (id)temporaryDirectory; + (id)_temporaryDirectoryUniqueURL; + (id)makeAttachmentPlaceholder:(id)a0 fileSize:(long long)a1 mimeType:(id)a2 contentID:(id)a3; + (id)mimeTypeForFileName:(id)a0; + (id)securityScopeForFileURL:(id)a0; + (BOOL)shouldCreatePlaceholderAttachmentForAttachmentWithSize:(long long)a0; + (id)temporaryFileURLWithExtension:(id)a0; + (id)writeData:(id)a0 toTemporaryFileURLWithFileName:(id)a1; @end