type: object
required:
  - type
  - geometry
  - properties
properties:
  type:
    type: string
    const: Feature
  geometry:
    oneOf:
      - type: null
      - $ref: geometryGeoJSON.yaml
  properties:
    type: 
      - object
      - null
  id:
    type:
      - string
      - integer
  links:
    type: array
    items:
      $ref: link.yaml