module Slack
  module RealTime
    module EventHandlers
      module PrefChange
        # You have updated your preferences.
        # @see https://api.slack.com/events/pref_change
        # @see https://github.com/dblock/slack-api-ref/blob/master/events/pref_change.json
        def self.call(client, data)
          client.self.prefs[data.name] = data.value
        end
      end
    end
  end
end

Slack::RealTime::Client.events['pref_change'] = Slack::RealTime::EventHandlers::PrefChange