def card_account
      response = JSON.parse(@client.get("users/#{send(:id)}/card_accounts").body)
      Promisepay::CardAccount.new(@client, response['card_accounts'])
    rescue Promisepay::UnprocessableEntity
      nil
    end
def card_account
      response = JSON.parse(@client.get("users/#{send(:id)}/card_accounts").body)
      Promisepay::CardAccount.new(@client, response['card_accounts'])
    rescue Promisepay::UnprocessableEntity
      nil
    end
Gets Card account for a user on a marketplace.

 @see https://reference.promisepay.com/#show-user-card-account

 @return [Promisepay::CardAccount]