{
  "$schema": "https://json-schema.org/draft/2020-12/schema",
  "$id": "#/components/schemas/ContactMedium",
  "title": "ContactMedium",
  "allOf": [
    {
      "$ref": "#/components/schemas/Extensible"
    },
    {
      "type": "object",
      "description": "Indicates the contact medium that could be used to contact the party. This is an abstract base class, the actual value is in one of the strongly-typed subclasses : EmailContactMedium, FaxContactMedium, PhoneContactMedium, GeographicAddressContactMedium, SocialMediaContactMedium...",
      "properties": {
        "id": {
          "type": "string",
          "description": "Identifier for this contact medium."
        },
        "preferred": {
          "type": "boolean",
          "description": "If true, indicates that is the preferred contact medium"
        },
        "contactType": {
          "type": "string",
          "description": "Type of the contact medium to qualify it like pro email / personal email. This is not used to define the contact medium used."
        },
        "validFor": {
          "$ref": "#/components/schemas/TimePeriod"
        }
      }
    }
  ],
  "discriminator": {
    "propertyName": "@type",
    "mapping": {
      "ContactMedium": "#/components/schemas/ContactMedium",
      "EmailContactMedium": "#/components/schemas/EmailContactMedium",
      "FaxContactMedium": "#/components/schemas/FaxContactMedium",
      "GeographicAddressContactMedium": "#/components/schemas/GeographicAddressContactMedium",
      "PhoneContactMedium": "#/components/schemas/PhoneContactMedium"
    }
  }
}