import { Rule } from '@angular-devkit/schematics';
/**
 * Return a rule that will trigger the ng-update for all packages in packageGroup if present.
 * @param packageJsonPath The path to the package.json file where the packageGroup is defined
 * @param validRange Only execute if the target version (--to) satisfies this range
 */
export declare function updatePackageGroup(packageJsonPath: string, validRange?: string): Rule;
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