# Functions
Add a new Format.
IsFormat returns true if mediaType begins with "application/cloudevents".
Lookup returns the format for contentType, or nil if not found.
Marshal an event to bytes using the mediaType event format.
Unmarshal bytes to an event using the mediaType event format.
# Constants
Prefix for event-format media types.
# Interfaces
Format marshals and unmarshals structured events to bytes.