HarmonyOS 如何使用BusinessError设置code码并抛出异常？

function ThrowError(error: BusinessError) { 
  throw error as Error; 
} 
const a: BusinessError<string> = { 
  name: "string", 
  message: "string", 
  code: 404, 
  data: "T" 
} 
ThrowError(a);