AWS ES terraform does not have "http-compression" in config aws_elasticsearch_domain

Hi Team,

I am trying to enable gzip compression on AWS ES. Currently running ES 6.8 (ES 7+ has this by default) . . I am able to do this using cURL for testing purpose but I wanted to ship this change via terraform. Required documentation seems to have majority of keywords which we are using. But my question is does anyone know the keyword/syntax for enabling “http_compression” ? Because this clearly does not have that information.