code: async function registerHapiSwagger(server, logger, config) {
    const Log = logger.bind('register-hapi-swagger')
  
    let swaggerOptions = {
      documentationPath: '/',
      host: config.swaggerHost,
      expanded: config.docExpansion,
      swaggerUI: config.enableSwaggerUI,
      documentationPage: config.enableSwaggerUI,
      schemes: config.enableSwaggerHttps ? ['https'] : ['http']
    }
  
    // if swagger config is defined, use that
    if (config.swaggerOptions) {
      swaggerOptions = { ...swaggerOptions, ...config.swaggerOptions }
    }
  
    // override some options for safety
    if (!swaggerOptions.info) {
      swaggerOptions.info = {}
    }
  
    swaggerOptions.info.title = config.appTitle
    swaggerOptions.info.version = config.version
    swaggerOptions.reuseDefinitions = false
  
    await server.register([
      Inert,
      Vision,
      { plugin: HapiSwagger, options: swaggerOptions }
    ])
  
    Log.info('hapi-swagger plugin registered')
  }
docs: Register and configure the hapi-swagger plugin.
  @param server
  @param logger
  @param config
  @returns {Promise<void>}