Check if a user exists
Details
uses aws_user() internally. see docs
https://www.paws-r-sdk.com/docs/iam_get_user/
See also
Other users:
aws_user(),
aws_user_access_key(),
aws_user_access_key_delete(),
aws_user_add_to_group(),
aws_user_create(),
aws_user_current(),
aws_user_delete(),
aws_users(),
six_user_create(),
six_user_delete()
Examples
if (FALSE) { # interactive() && aws_has_creds()
aws_user_exists(aws_user_current())
aws_user_exists("doesnotexist")
}