import React from 'react'; export const isPOSCommandArray = (param: any): param is Uint8Array => { return ( 'BYTES_PER_ELEMENT' in param || 'buffer' in param || 'byteLength' in param ); }; export const isJSXArray = (param: any): param is JSX.Element[] => { if (!Array.isArray(param)) { return false; } return param.some((value) => React.isValidElement(value)); };