Retrieves post (join|leave|files|message) and annotation (comment|like) block type
The mode option dictates how the feed is displayed:
Thread ID (can also use ‘default’)
Offset ID to start listing from (omit for latest)
List page size (default: 5)
Feed mode (one of 'chrono’, 'annotated’, or ‘stacks’)
Feed is an API module for paginating post and annotation block types
API