REQUIRED. The lifetime in seconds of the "device_code" and
"user_code".
intervalinteger nullable
OPTIONAL. The minimum amount of time in seconds that the client
SHOULD wait between polling requests to the token endpoint. If no
value is provided, clients MUST use 5 as the default.
user_codestring required
REQUIRED. The end-user verification code.
verification_uristring required
REQUIRED. The end-user verification URI on the authorization
server. The URI should be short and easy to remember as end users
will be asked to manually type it into their user agent.
verification_uri_completestring nullable
OPTIONAL. A verification URI that includes the "user_code" (or
other information with the same function as the "user_code"),
which is designed for non-textual transmission.