public void setUserAliasesToDelete(java.util.Collection<UserAlias> userAliasesToDelete) {
        if (userAliasesToDelete == null) {
            this.userAliasesToDelete = null;
            return;
        }

        this.userAliasesToDelete = new java.util.ArrayList<UserAlias>(userAliasesToDelete);
    }
<p>
The user aliases attached to the user id that are to be deleted.
</p>

@param userAliasesToDelete
       The user aliases attached to the user id that are to be deleted.
aws-java-sdk-qbusiness/src/main/java/com/amazonaws/services/qbusiness/model/UpdateUserRequest.java