Return type indicates whether or not stderr is also being handled.
If a stream or raw TAP is used, then false is returned, indicating
that child test process stderr is not handled, and stdio should be
inherited from main runner process.
If a React component is used, then it's responsible for handling the
stderr of any spawned child processes, and this function returns true
to indicate that stdio should be piped.
Return type indicates whether or not stderr is also being handled. If a stream or raw TAP is used, then
falseis returned, indicating that child test process stderr is not handled, and stdio should be inherited from main runner process. If a React component is used, then it's responsible for handling the stderr of any spawned child processes, and this function returns true to indicate that stdio should be piped.