Cloudevents format v0.1.
t() :: %Cloudevents.Format.V_0_1.Event{ cloud_events_version: String.t(), content_type: String.t() | nil, data: any() | nil, event_id: String.t(), event_time: String.t() | nil, event_type: String.t(), raw: any() | nil, source: String.t() }