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/** * @name arrayRange * @summary Returns a range of numbers ith the size and the specified offset * @description * Returns a new array of numbers with the specific size. Optionally, when `startAt`, is provided, it generates the range to start at a specific value. * @example * <BR> * * ```javascript * import { arrayRange } from 'https://deno.land/x/polkadot@0.2.33/util/mod.ts'; * * arrayRange(5); // [0, 1, 2, 3, 4] * arrayRange(3, 5); // [5, 6, 7] * ``` */export function arrayRange (size: number, startAt = 0): number[] {  if (size <= 0) {    throw new Error('Expected non-zero, positive number as a range size');  }
  const result = new Array<number>(size);
  for (let i = 0; i < size; i++) {    result[i] = i + startAt;  }
  return result;}