func IsNoAddressError(err error) bool {
	err = errors.Cause(err)
	_, ok := err.(*noAddress)
	return ok
}
// IsNoAddressError reports whether err was created with NoAddressError().
IsNoAddressError reports whether err was created with NoAddressError().
// IsNoAddressError reports whether err was created with NoAddressError () .
func IsNoAddressError(err error) bool {
	err = errors.Cause(err)
	_, ok := err.(*noAddress)
	return ok
}
func IsNoAddressError ( err error ) bool { err = errors . Cause ( err ) _ , ok := err . ( * noAddress ) return ok }
IsNoAddressError reports whether err was created with NoAddressError().
IsNoAddressError reports whether err was created with NoAddressError () .