docs/SMS.md in messente_api-1.4.0 vs docs/SMS.md in messente_api-2.1.0

@@ -1,27 +1,30 @@
 # MessenteApi::SMS
 
 ## Properties
 
-Name | Type | Description | Notes
------------- | ------------- | ------------- | -------------
-**text** | **String** | Text content of the SMS | 
-**sender** | **String** | Phone number or alphanumeric sender name | [optional] 
-**validity** | **Integer** | After how many minutes this channel is considered as failed and the next channel is attempted | [optional] 
-**autoconvert** | **String** | Defines how non-GSM characters will be treated:    - \"on\" Use replacement settings from the account's [API Auto Replace settings page](https://dashboard.messente.com/api-settings/auto-replace) (default)   - \"full\" All non GSM 03.38 characters will be replaced with suitable alternatives   - \"off\" Message content is not modified in any way | [optional] 
-**udh** | **String** | hex-encoded string containing SMS UDH | [optional] 
-**channel** | **String** | The channel used to deliver the message | [optional] [default to 'sms']
+| Name | Type | Description | Notes |
+| ---- | ---- | ----------- | ----- |
+| **text** | **String** | Text content of the SMS |  |
+| **sender** | **String** | Phone number or alphanumeric sender name | [optional] |
+| **validity** | **Integer** | After how many minutes this channel is considered as failed and the next channel is attempted.                     Only one of \"ttl\" and \"validity\" can be used. | [optional] |
+| **ttl** | **Integer** | After how many seconds this channel is considered as failed and the next channel is attempted.                     Only one of \"ttl\" and \"validity\" can be used. | [optional] |
+| **autoconvert** | **String** | Defines how non-GSM characters will be treated:    - \"on\" Use replacement settings from the account's [API Auto Replace settings page](https://dashboard.messente.com/api-settings/auto-replace) (default)   - \"full\" All non GSM 03.38 characters will be replaced with suitable alternatives   - \"off\" Message content is not modified in any way | [optional] |
+| **udh** | **String** | hex-encoded string containing SMS UDH | [optional] |
+| **channel** | **String** | The channel used to deliver the message | [optional][default to 'sms'] |
 
-## Code Sample
+## Example
 
 ```ruby
-require 'MessenteApi'
+require 'messente_api'
 
-instance = MessenteApi::SMS.new(text: Hello world!,
-                                 sender: null,
-                                 validity: 360,
-                                 autoconvert: null,
-                                 udh: null,
-                                 channel: null)
+instance = MessenteApi::SMS.new(
+  text: Hello world!,
+  sender: null,
+  validity: 360,
+  ttl: 21600,
+  autoconvert: null,
+  udh: null,
+  channel: null
+)
 ```
-