/**
 * Reads pixel values from a COG (Cloud Optimized GeoTIFF) from all channels DeckGL picking-info object.
 *
 * Resolves the UV coordinate from `info.uv` or `info.bitmap.uv`, maps it to an (x, y)
 * pixel position within the raw tile buffer, and slices out the per-channel values.
 * Returns `null` if tile data is unavailable or the value at `channelIndex` is NaN.
 *
 * @param {any} info - DeckGL picking info object. Expected to contain:
 *   - `info.uv` or `info.bitmap.uv` — normalised UV coordinates `[u, v]` within the tile.
 *   - `info.tile.content.raw` — flat typed array of raw pixel data.
 *   - `info.tile.content.width` / `height` — tile dimensions in pixels.
 * @param {number} channelIndex - Zero-based index of the channel whose value is validated.
 *   Must be a finite integer within `[0, channels-1]`; otherwise `null` is returned.
 * @returns {number[] | null} Array of values from all channels at the picked pixel,
 *   or `null` if the data is unavailable or the value on current channel contains NaN.
 */
export declare function readCogPixelValues(info: any, channelIndex: number): number[] | null;