# File lib/active_merchant/billing/gateways/braintree.rb, line 60
      def update(vault_id, creditcard, options = {})
        post = {}
        post[:customer_vault] = "update_customer"
        add_customer_vault_id(post, vault_id)
        add_creditcard(post, creditcard, options)        
        add_address(post, creditcard, options)   
        add_customer_data(post, options)
             
        commit(nil, nil, post)
      end