Add option to set validity

src/main/java/com/cmtelecom/text/sdk/models/Message.java

@@ -114,6 +114,31 @@ public class Message {
 
     @SerializedName("richContent")
     public com.cmtelecom.text.sdk.models.multichannel.RichContent RichContent;
+
+    /// <summary>
+    ///     Optional: For each message you send, you can set a validity.
+    ///     Specify a time at which a delayed message can be considered irrelevant, you can supply an absolute date & time 
+    ///     or a relative offset. A message is considered failed if it was not successfully delivered before that time. 
+    ///     And via a Status Report we inform you this was the case.
+    ///     For more information on status reports, see:
+    ///     https://docs.cmtelecom.com/business-messaging/v1.0#/status_report_webhook
+    ///     You can supply the time zone for the validity period using either of the following formats:
+    ///     
+    ///     Absolute date and time:
+    ///     
+    ///     2017-04-20 11:50:05 GMT
+    ///     2017-04-20 11:50:05+8
+    ///     2017-04-20 11:55:05-07:00
+    ///     If no time zone was specified, CE(S)T will be used. (CM local time)
+    ///     
+    ///     Relative offset in hour(H) or minute(M)
+    ///     
+    ///     2h
+    ///     30m
+    ///     You can set the validity in either hours or minutes. A combination of both is not supported.
+    /// </summary>
+    @SerializedName("validity")
+    public String Validity;
 
 
     public Message(Body body, String from, List<Recipient> recipientList) {

target/maven-archiver/pom.properties

@@ -1,5 +1,5 @@
 #Generated by Maven
-#Thu Mar 26 09:32:54 CET 2020
+#Fri Sep 11 15:02:38 CEST 2020
 groupId=com.github.cmdotcom
 artifactId=text-sdk-java
 version=1.0-SNAPSHOT