{ "$schema": "https://json-schema.org/draft/2020-12/schema", "$id": "#/components/schemas/FaxContactMedium_MVO", "title": "FaxContactMedium_MVO", "allOf": [ { "$ref": "#/components/schemas/ContactMedium_MVO" }, { "type": "object", "description": "Describes a fax that could be used to contact a party (an individual or an organization)", "properties": { "faxNumber": { "type": "string", "description": "The fax number of the contact" } } } ] }