conversation resource type
A conversation is a collection of threads, and a thread contains posts to that thread. All threads and posts in a conversation share the same subject.
||Indicates whether any of the posts within this Conversation has at least one attachment.
||The conversations's unique identifier. Read-only.
||The Timestamp type represents date and time information using ISO 8601 format and is always in UTC time. For example, midnight UTC on Jan 1, 2014 would look like this:
||A short summary from the body of the latest post in this converstaion.
||The topic of the conversation. This property can be set when the conversation is created, but it cannot be updated.
||All the users that sent a message to this Conversation.
||A collection of all the conversation threads in the conversation. A navigation property. Read-only. Nullable.
Here is a JSON representation of the resource
"id": "string (identifier)",
"lastDeliveredDateTime": "String (timestamp)",