Id
https://tools.ietf.org/html/rfc7946#section-3.2 If a Feature has a commonly used identifier, that identifier SHOULD be included as a member of the Feature object with the name "id", and the value of this member is either a JSON string or number.
Id
https://tools.ietf.org/html/rfc7946#section-3.2 If a Feature has a commonly used identifier, that identifier SHOULD be included as a member of the Feature object with the name "id", and the value of this member is either a JSON string or number.