A type of slackchat.
A channel that hosts a slackchat.
A participant in a slackchat.
A message posted by a user in a Slack channel.
An emoji reaction to a message in Slack.
An unfurled link or media item attached to a message.
An argument that can be attached to a message through an emoji reaction in Slack. Arguments can signal to a render that a message should be handled in a special way.
A keyword argument that can be attached to a message through a threaded message. Keyword arguments can signal to a render that a message should be handled in a special way.
A template that matches a regex pattern against a message's content and can be used to reformat that content or to attach an argument when a match is found.