code: func NewDNSProvider() (*DNSProvider, error) {
  	config := NewDefaultConfig()
  	config.AccessToken = env.GetOrFile("DNSIMPLE_OAUTH_TOKEN")
  	config.BaseURL = env.GetOrFile("DNSIMPLE_BASE_URL")
  
  	return NewDNSProviderConfig(config)
  }
docs: // NewDNSProvider returns a DNSProvider instance configured for dnsimple.
  // Credentials must be passed in the environment variables: DNSIMPLE_OAUTH_TOKEN.
  //
  // See: https://developer.dnsimple.com/v2/#authentication