title: Specifying sessionToken lifetime when calling AWS Cognito GetCredentialsForIdentity
body: <p>for debugging purposes I would really like to know how I can specify the lifetime of my cognito session token. The credentials have a default lifetime of 1 hour from what I can tell. I would like to lower that to testable 1 min for instance. Does anyone know?</p>
  
  <p>I haven't found anything for this call.</p>