/**
 * Finds the rightmost index in a sorted array where the value is less than or equal to the target.
 *
 * This specialized binary search is optimized for virtualized UI components. For example, when
 * determining which elements to render after scrolling to position 200px, this function efficiently
 * identifies the first element that should be included in the viewport.
 *
 * The function guarantees a valid index result:
 * - If an exact match is found, returns that index
 * - If the target falls between two values, returns the lower index
 * - If target is less than all values, returns 0
 * - If target is greater than all values, returns the last index
 */
export declare function rangedBinarySearch(range: Uint32Array, target: number): number;