How to use the minecraft-data.version function in minecraft-data

function next () {
      const version = require('minecraft-data')(self._client.version).version
      if (supportedVersions.indexOf(version.majorVersion) === -1) {
        throw new Error(`Version ${version.minecraftVersion} is not supported.`)
      }
      self.protocolVersion = version.version
      self.majorVersion = version.majorVersion
      self.version = version.minecraftVersion
      options.version = version.minecraftVersion
      self.emit('inject_allowed')
    }
  }