nl_tokens: Update an existing file .
pl_tokens: function ( id , path , body , contentType , options ) { const metadata = { mimeType : contentType } ; const headers = { 'Content-Type' : 'application/json; charset=UTF-8' } ; if ( options && options . ifMatch ) { headers [ 'If-Match' ] = '"' + options . ifMatch + '"' ; } return this . _request ( 'PUT' , BASE_URL + '/upload/drive/v2/files/' + id + '?uploadType=resumable' , { body : JSON . stringify ( metadata ) , headers : headers } ) . then ( ( response ) => { if ( response . status === 412 ) { return ( <mask> ) ; } else { return this . _request ( 'PUT' , response . getResponseHeader ( 'Location' ) , { body : contentType . match ( / ^application\/json / ) ? JSON . stringify ( body ) : body } ) ; } } ) ; }