nl_tokens: Attempt to load a Kes override class .
pl_tokens: function loadKesOverride ( kesFolder , kesClass = 'kes.js' ) { let kesOverridePath = path . resolve ( kesFolder , kesClass ) ; let KesOverride ; try { KesOverride = require ( kesOverridePath ) ; } catch ( e ) { // If the Kes override file exists, then the error occured when // trying to parse the file, so re-throw and prevent Kes from // going further. const fileExists = <mask> . existsSync ( kesOverridePath ) ; if ( fileExists ) { throw e ; } console . log ( ` ${ kesOverridePath } ` ) ; } return KesOverride ; }