[Home](./index.md) > [worker-tls](./worker-tls.md) > [AsyncFun](./worker-tls.asyncfun.md) ## AsyncFun type 把函数转为异步函数 **Signature:** ```typescript export type AsyncFun any> = GetExecFunResultData extends ReadableStream ? (...args: AsyncFunArgs) => GetExecFunResultData : (...args: AsyncFunArgs) => Promise>; ``` **References:** [GetExecFunResultData](./worker-tls.getexecfunresultdata.md), [AsyncFunArgs](./worker-tls.asyncfunargs.md)