Need integration level validation for new methods.

[vorasmit]

Need integration level validation for new methods.

Because of some property setters and validation.

Originally posted by @Abdeali099 in #51 (comment)

[Abdeali099]

This should be in specific Integration level not in utils level?

[Abdeali099]

@vorasmit also this implementation is just similar to create a new property setter for the Payment Method.