package rabbitmq import "context" type DeliveryMetadata struct { DeliveryTag uint64 Redelivered bool Consumer string Queue string Headers map[string]any } type deliveryMetadataContextKey struct{} func WithDeliveryMetadata(ctx context.Context, metadata DeliveryMetadata) context.Context { return context.WithValue(ctx, deliveryMetadataContextKey{}, metadata) } func DeliveryMetadataFromContext(ctx context.Context) (DeliveryMetadata, bool) { metadata, ok := ctx.Value(deliveryMetadataContextKey{}).(DeliveryMetadata) return metadata, ok }