export declare function ordinary_attr_transit_name(name: string): string;
export declare function decode_ordinary_attr_transit_name(name: string): string | undefined;
export declare function is_ordinary_attr_transit_name(name: string): boolean;
/**
 * Apply the established raw-HTML duplicate policy while original semantic
 * names are still visible, then optionally encode XML-hostile ordinary names
 * with a self-decoding private spelling.
 */
export declare function normalize_html_source_attributes(source: string, options?: Readonly<{
    encodeTransit?: boolean;
}>): string;
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