action tfl_stop_point_meta_categories {
  label: "Gets the list of available StopPoint additional information categories"
  provider: tfl
  method: GET
  path: "/StopPoint/Meta/Categories"
  encoding: json
  output: {
    type: "array"
    items: {
      type: "object"
      properties: {
        availableKeys: {
          type: "array"
          items: {
            type: "string"
          }
        }
        category: {
          type: "string"
        }
      }
    }
  }
}