errors

func AsA ¶

func AsA[E error](err error) (e E, ok bool)

AsA finds the first error in err's tree that has the type E, and if one is found, returns that error value and true. Otherwise it returns the zero value of E and false. Note that this implement is reference [#51945])(https://github.com/golang/go/issues/51945) and [#56949](https://github.com/golang/go/issues/56949).