import { type BlockMarkdownAdapterMatcher } from '@blocksuite/affine-shared/adapters';
export declare const attachmentBlockMarkdownAdapterMatcher: BlockMarkdownAdapterMatcher;
export declare const AttachmentBlockMarkdownAdapterExtension: import("@blocksuite/store").ExtensionType & {
    identifier: import("@blocksuite/global/di").ServiceIdentifier<BlockMarkdownAdapterMatcher>;
};
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