/**
 * Checks if items of given Array is same
 * @param arr{Array} - source Array
 * @return {boolean}
 * @example
 * // How to check if all records are equal in array?
 * const arr = [ 1, 1, 1 ];
 * const isSame = isItemsEqual(arr);
 * console.log(isSame); // => true
 */
export function isItemsEqual(arr: any[]): boolean;
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