event

type Envelope struct {

	// ID is a unique identifier for the event.
	Id string `protobuf:"bytes,1,opt,name=id,proto3" json:"id,omitempty"`
	// Timestamp represents the time at which an event was created.
	Timestamp *timestamppb.Timestamp `protobuf:"bytes,2,opt,name=timestamp,proto3" json:"timestamp,omitempty"`
	// AppliesAt indicates the time at which the event described in Payload happened. It does not always
	// match Timestamp.
	AppliesAt *timestamppb.Timestamp `protobuf:"bytes,3,opt,name=applies_at,json=appliesAt,proto3" json:"applies_at,omitempty"`
	// Payload contains the content of the event,
	Payload *anypb.Any `protobuf:"bytes,4,opt,name=payload,proto3" json:"payload,omitempty"`
	// contains filtered or unexported fields
}