code: function __deserializeInt64(buffer, start, options) {
  	let step = 4;
  	let length = 2;
  	let end = start + (step * length);
  	let dataView = new DataView(buffer);
  	let dataArray = [];
  	for (let i = start; i < end; i += step) {
  		dataArray.push(dataView.getUint32(i, true));
  	}
  	let data = new Int64(new Uint32Array(dataArray));
  	return { anchor: end, value: data };
  }
docs: Deserialize Int64 data
  @param {ArrayBuffer} buffer
  @param {number} start - byteOffset
  @param {DeserializeOptions} options
  @returns {{anchor: number, value: Int64}} anchor: byteOffset
  @private