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const SemVer = require('../classes/semver')

const inc = (version, release, options, identifier) => {
  if (typeof (options) === 'string') {
    identifier = options
    options = undefined
  }

  try {
    return new SemVer(version, options).inc(release, identifier).version
  } catch (er) {
    return null
  }
}
module.exports = inc