Cannot install ElasticSearchPremium via composer on Magento Cloud Platform

Cannot install ElasticSearchPremium via composer on Magento Cloud Platform

Hello everybody,

I'm cannot install ElasticSearchPremium module via composer on Magento Cloud Platform. COMPOSER_AUTH enviroment configured like this:


When push composer.json to the cloud platform, I've got the error message:

  2. [Composer\Downloader\TransportException]                                                               
  3.         W:   The 'https://composer.amasty.com/enterprise/packages/base-1.12.9-ee.zip' URL required authentication.  
  4.         W:   You must be using the interactive console to authenticate    
How can I resolve it?
Thanks and best regards.