/**
 * Increment x by the next representable float
 * @param x - the float
 * @param incSize - the increment size
 * @returns - the incremented float
 */
export declare function nextUp(x: number, incSize?: number): number;
/**
 * Decrement x by the next representable float
 * @param x - the float
 * @param decSize - the dcrement size
 * @returns - the decremented float
 */
export declare function nextDown(x: number, decSize?: number): number;
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