nl_tokens: Invalidate an access token .
pl_tokens: function invalidate ( { accessToken , clientToken } ) { return fetch ( ` ${ YGGDRASIL_API } ` , { <mask> : 'POST' , body : JSON . stringify ( { accessToken , clientToken } ) , headers : { 'user-agent' : USER_AGENT , 'content-type' : 'application/json' } } ) . then ( handleErrors ) . then ( res => null ) }