nl_tokens: Normalize API feature item
pl_tokens: function normalizeFeatureItem ( item , existed , result , logger ) { let addItem ; if ( typeof <mask> === 'string' ) { addItem = addFeatureItem ( logger , existed , item ) ; } else if ( Array . isArray ( item ) ) { let [ name , params ] = item ; addItem = addFeatureItem ( logger , existed , name , params ) ; } else if ( item && typeof item === 'object' ) { let { name , params } = item ; addItem = addFeatureItem ( logger , existed , name , params ) ; } if ( addItem ) { result . push ( addItem ) ; } }