/**
 * Extracts the content between the first opening and last closing occurrence
 * of an XML-like tag in text. Case-insensitive tag matching. Opening tag may
 * include attributes (e.g. `<response foo="bar">`). Content is returned
 * unmodified except for leading/trailing whitespace trimming.
 *
 * Returns null if either the opening or closing tag is missing.
 */
export declare function tagExtract(text: string, tag: string): string | null;
/**
 * Extracts content from all non-overlapping `<tag>...</tag>` pairs in order.
 * Each pair is matched greedily to its nearest closing tag. Content is trimmed.
 * Returns empty array if no complete pairs are found.
 */
export declare function tagExtractAll(text: string, tag: string): string[];
/**
 * Removes the matched tag block (first open to last close, inclusive) from text.
 * Returns the remaining text. If no complete tag block is found, returns text unchanged.
 */
export declare function tagStrip(text: string, tag: string): string;
export declare function escapeRegExp(value: string): string;
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