Hi, how would I get Ory to use the Permission Language File for namespace setup? I use the user-rewrites example in the repository and get the error:

keto_1       | time=2022-10-19T06:57:23Z level=warning msg=could not infer format from file extension audience=application error=map[message:expected one of [.yaml, .yml, .json, .toml] but got .ts stack_trace:stack trace could not be recovered from error type stringsx.errUnknownCase] file_name=/home/ory/namespaces.keto.ts service_name=Ory Keto service_version=v0.10.0-alpha.0

my docker-compose looks like this:

version: "3.2"

services:
  keto:
    image: oryd/keto:v0.10.0
    ports:
      - "4466:4466"
      - "4467:4467"
    command: serve -c /home/ory/keto.yaml
    restart: on-failure
    volumes:
      - type: bind
        source: .
        target: /home/ory

and the keto.yaml like this

version: v0.10.0-alpha.0

dsn: memory

namespaces: file:///home/ory/namespaces.keto.ts

log:
  level: trace