def METHOD_NAME(resource_type):
    """Determine the pluralized form of the resource type.
    Args:
        resource_type (str): The resource type for which to get its plural form.
    Returns:
        str: The pluralized version of the resource type, if supported,
        otherwise None.
    """
    if resource_type not in _RESOURCE_TYPE_MAP:
        return None
    return _RESOURCE_TYPE_MAP.get(resource_type).get('plural')