/**
 * Get the 1-based line number for a character index in source text.
 */
export declare function getLineNumber(source: string, index: number): number;
/**
 * Extract a context window around a position in source text.
 * Truncates with "..." if the window extends beyond the source bounds.
 */
export declare function extractContext(body: string, index: number, width: number): string;
/**
 * Find the parent component name by scanning backwards from a JSX usage.
 * Looks for the nearest enclosing JSX element or function/const declaration.
 */
export declare function findParentComponent(source: string, usageIndex: number): string | null;
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