nl_tokens: Determine the build mode .
pl_tokens: function getMode ( env , argv ) { // When running from parallel-webpack, grab the cli parameters argv = <mask> . keys ( argv ) . length ? argv : require ( 'minimist' ) ( process . argv . slice ( 2 ) ) ; var isProd = ( argv . mode || env . mode ) === 'production' || env === 'prod' || env . prod ; return isProd ? 'production' : 'development' ; }