exec_streamer_builder.go
func (e *execStreamerBuilder) Dir(dir string) ExecStreamerBuilder {
	e.d.Dir = dir
	return e
}
func (e *execStreamerBuilder) Dir(dir string) ExecStreamerBuilder {
	e.d.Dir = dir
	return e
}
func ( e * execStreamerBuilder ) Dir ( dir string ) ExecStreamerBuilder { e . d . Dir = dir return e }
//Dir sets the Dir
Dir sets the Dir