onShippingAddressChange

@data

Property	Type	Required
checkoutId	string	mandatory
shippingAddress	Address	mandatory
shippingAddressName	Name	optional (some platforms require the name to get back the shipping methods)

@return

Property	Type	Required
shippingMethods	array of Shipping Method	mandatory N.B.: return empty shipping methods array if no methods available
pickupMethods	array of PickupMethod	optional (return empty pickup methods array if no methods available)
shipToStoreMethods	array of PickupMethod	optional (return empty shipping to store methods array if no methods available)