<SYSTEM_TASK:>
Solve the following problem using Python, implementing the functions described below, one line at a time
<END_TASK>
<USER_TASK:>
Description:
 def get_comments_are_moderated(instance):
 """ Check if comments are moderated for the instance """

    if not IS_INSTALLED:
        return False

    try:
        # Get the moderator which is installed for this model.
        mod = moderator._registry[instance.__class__]
    except KeyError:
        # No moderator = no moderation
        return False

    # Check the 'auto_moderate_field', 'moderate_after',
    # by reusing the basic Django policies.
    return CommentModerator.moderate(mod, None, instance, None)