curl --request GET \
  --url https://api.example.com/edges/types \
  --header 'Authorization: Bearer <token>'

{
  "edge_types": [
    {
      "id": "<string>",
      "source_type_constraints": [
        "<string>"
      ],
      "target_type_constraints": [
        "<string>"
      ],
      "property_schema": {},
      "label": "<string>",
      "description": "<string>"
    }
  ]
}