class ErrorsIn

|ErrorsIn

<Method

>| represents the set of all possible errors during a

fallible two-way |Method|:

- Framework errors: errors from the FIDL framework.

- Domain errors: errors defined in the |Method| from the FIDL schema.

Users should first inspect if an instance contains a framework or domain

error, before diving into the individual variant. Alternatively, they may

print a description either by piping it to an |std::ostream| or calling

|FormatDescription|.