int hashCode

Get a hash code for this object.

All objects have hash codes. Hash codes are guaranteed to be the same for objects that are equal when compared using the equality operator ==. Other than that there are no guarantees about the hash codes. They will not be consistent between runs and there are no distribution guarantees.

If a subclass overrides hashCode it should override the equality operator as well to maintain consistency.

Source 

@override
int get hashCode {
  return hashValues(
    backgroundColor,
    backgroundImage,
    border,
    borderRadius,
    boxShadow,
    gradient,
    shape
  );
}