gulp.task('ngc', () => ngc('src/tsconfig.json'));
gulp.task('ngc-src', (callback) => { return ngc('./tsconfig-src.json', callback); });
gulp.task('ngc-main', (callback) => { return gulp .src('./exports.ts') .pipe(ngc('./tsconfig-main.json', callback)); });
gulp.task('ngc-src', ['update-properties'], (callback) => { return ngc('./tsconfig-src.json', callback); });