def void
      warn "[DEPRECATED] void as an instance method is deprecated. Please use Transaction.void"
      result = @gateway.transaction.void(id)
      if result.success?
        copy_instance_variables_from_object result.transaction
      end
      result
    end
def void
      warn "[DEPRECATED] void as an instance method is deprecated. Please use Transaction.void"
      result = @gateway.transaction.void(id)
      if result.success?
        copy_instance_variables_from_object result.transaction
      end
      result
    end
Deprecated. Use Braintree::Transaction.void