/**
 * Pins the dependencies whose releases are tied to an Angular major.
 *
 * Zard supports Angular 19 and above, but several of the packages it installs
 * ship one release per Angular major and peer on `>=` that major. Asking for
 * them by name resolves to `latest`, which peers on an Angular newer than the
 * project's: npm then fails the whole install with ERESOLVE, and the retry with
 * `--legacy-peer-deps` "succeeds" while leaving a version that cannot compile.
 */
/** The major of an Angular version string, or null when it could not be read. */
export declare function angularMajorOf(angularVersion: string | null | undefined): number | null;
/**
 * The install specifier for one package.
 *
 * Returns the name unchanged whenever nothing is known to constrain it — an
 * unrecognized package, or an Angular major this package has no history for.
 */
export declare function pinForAngular(packageName: string, angularMajor: number | null): string;
/** `pinForAngular` over a batch, keeping the order the caller passed. */
export declare function pinAllForAngular(packageNames: Iterable<string>, angularVersion: string | null): string[];
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