accounts.go
func (a *AccountService) Update(ctx context.Context, sid string, data url.Values) (*Account, error) {
	acct := new(Account)
	// hack because this is not a resource off of the account sid
	sidJSON := sid + ".json"
	err := a.client.UpdateResource(ctx, accountPathPart, sidJSON, data, acct)
	return acct, err
}
func (a *AccountService) Update(ctx context.Context, sid string, data url.Values) (*Account, error) {
	acct := new(Account)
	// hack because this is not a resource off of the account sid
	sidJSON := sid + ".json"
	err := a.client.UpdateResource(ctx, accountPathPart, sidJSON, data, acct)
	return acct, err
}
// Update the key with the given data. Valid parameters may be found here:
// https://www.twilio.com/docs/api/rest/keys#instance-post