$ export KETO_WRITE_REMOTE="127.0.0.1:4467" go run main.go relation-tuple create contrib/cat-videos-example/relation-tuples --insecure-disable-transport-security
Could not decode: json: unknown field "$schema"

Hi! I'm new to keto. Is this a bug? I found this piece of code:

// cmd/relationtuple/create.go
	decoder := json.NewDecoder(bytes.NewReader(fc))
	decoder.DisallowUnknownFields() // unknownFields

// ketoapi/public_api_definitions.go
type RelationTuple struct {
	// the $schema field is missing
}