/**
 *
 * @param {Sampler2D} sampler
 * @param {number} [channel=0]
 * @returns {undefined|{x: number, index:number, y: number, value: number}}
 */
export function sampler2d_channel_compute_min(sampler: Sampler2D, channel?: number): {
    x: number;
    index: number;
    y: number;
    value: number;
};
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