abort "#{$0}: fatal: ARVADOS_API_HOST environment variable not set."
$arvados_api_token = ENV['ARVADOS_API_TOKEN'] or
abort "#{$0}: fatal: ARVADOS_API_TOKEN environment variable not set."
abort "#{$0}: fatal: ARVADOS_API_HOST environment variable not set."
$arvados_api_token = ENV['ARVADOS_API_TOKEN'] or
abort "#{$0}: fatal: ARVADOS_API_TOKEN environment variable not set."