title: How pass json value for admin-update-user-attributes operation via cli in aws?
body: <p>Consider the example:</p>
  
  <pre><code>aws cognito-idp admin-update-user-attributes --user-pool-id myUserPollId
  --username myUser 
  --user-attributes [{"Name": "custom:roles","Value": "ROLE1,ROLE2"}] --region us-east-1
  </code></pre>
  
  <p>This gets me error:</p>
  
  <pre><code>Invalid JSON:
      [{Name:
  </code></pre>