Changes the settings of an existing environment member for an AWSCloud9 development environment.Show details from next link. https://docs.aws.amazon.com/ja_jp/cli/latest/reference/cloud9/update-environment-membership.html
| aws cloud9 update-environment-membership --environment-id 8a34f51ce1e04a08882f1e811bd706EX --user-arn arn:aws:iam::123456789012:user/AnotherDemoUser --permissions read-only |
| update-environment — AWS CLI 1.16.2 Command Reference : http://docs.aws.amazon.com/cli/latest/reference/cloud9/update-environment-membership.html |