public DescribeUserProfilesRequest withIamUserArns(java.util.Collection<String> iamUserArns) {
        setIamUserArns(iamUserArns);
        return this;
    }
<p>
An array of IAM or federated user ARNs that identify the users to be described.
</p>

@param iamUserArns
       An array of IAM or federated user ARNs that identify the users to be described.
@return Returns a reference to this object so that method calls can be chained together.
aws-java-sdk-opsworks/src/main/java/com/amazonaws/services/opsworks/model/DescribeUserProfilesRequest.java