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"`
	// Send contains metadata describing who produced the event.
	Sender *Sender `protobuf:"bytes,5,opt,name=sender,proto3" json:"sender,omitempty"`
	// contains filtered or unexported fields
}

type Sender struct {

	// Application is the name of the application that created an event.
	Application string `protobuf:"bytes,1,opt,name=application,proto3" json:"application,omitempty"`
	// Metadata contains any metadata fields provided by the sender. This can include
	// trace tokens or any other arbitrary data.
	Metadata map[string]string `` /* 157-byte string literal not displayed */
	// contains filtered or unexported fields
}