@interface QLTextThumbnailRenderer : NSObject + (id)mutableAttributedStringForThumbnailWithData:(id)a0 contentType:(id)a1 encoding:(unsigned int)a2 documentAttributes:(id *)a3; + (id)mutableAttributedStringForThumbnailWithURL:(id)a0 documentAttributes:(id *)a1; + (id)_readingOptionsFromContentType:(id)a0 encoding:(unsigned int)a1; + (id)textDocumentTypeFromContentType:(id)a0; @end