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export function type(input){  if (input === null){    return 'Null'  } else if (input === undefined){    return 'Undefined'  } else if (Number.isNaN(input)){    return 'NaN'  }  const typeResult = Object.prototype.toString.call(input).slice(8, -1)
  return typeResult === 'AsyncFunction' ? 'Promise' : typeResult}