export function angularMajorCompatGuarantee(range: string) {
  let newRange = semver.validRange(range);
  if (!newRange) {
    return range;
  }
  let major = 1;
  while (!semver.gtr(major + '.0.0', newRange)) {
    major++;
    if (major >= 99) {
      // Use original range if it supports a major this high
      // Range is most likely unbounded (e.g., >=5.0.0)
      return newRange;
    }
  }

  // Add the major version as compatible with the angular compatible, with all minors. This is
  // already one major above the greatest supported, because we increment `major` before checking.
  // We add minors like this because a minor beta is still compatible with a minor non-beta.
  newRange = range;
  for (let minor = 0; minor < 20; minor++) {
    newRange += ` || ^${major}.${minor}.0-alpha.0 `;
  }

  return semver.validRange(newRange) || range;
}

  '@angular/core': (range: string) => {
    range = semver.validRange(range);
    let major = 1;
    while (!semver.gtr(major + '.0.0', range)) {
      major++;
      if (major >= 99) {
        throw new SchematicsException(`Invalid range: ${JSON.stringify(range)}`);
      }
    }

    // Add the major version as compatible with the angular compatible. This is already one
    // major above the greatest supported, because we increment `major` before checking.
    return semver.validRange(`^${major}.0.0-rc.0 || ${range}`) || range;
  },

bool = semver.neq(v1, v2, loose);
bool = semver.cmp(v1, op, v2, loose);
comparatorResult = semver.compare(v1, v2, loose);
comparatorResult = semver.rcompare(v1, v2, loose);
comparatorResult = semver.compareIdentifiers(str, str);
comparatorResult = semver.rcompareIdentifiers(str, str);
versionsArr = semver.sort(['', new semver.SemVer('')]);
versionsArr = semver.rsort(['', new semver.SemVer('')]);
diff = semver.diff(v1, v2, loose);

// Ranges
str = semver.validRange(str, loose);
bool = semver.satisfies(version, str, loose);
str = semver.maxSatisfying(versions, str, loose);
str = semver.minSatisfying(versions, str, loose);
bool = semver.gtr(version, str, loose);
bool = semver.ltr(version, str, loose);
bool = semver.outside(version, str, '<', loose);
bool = semver.intersects(str, str, loose);

let ver = new semver.SemVer(str, bool);
str = ver.raw;
bool = ver.loose;
str = ver.format();
str = ver.inspect();
str = ver.toString();

num = ver.major;
num = ver.minor;
num = ver.patch;
str = ver.version;