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Solve the following problem using Python, implementing the functions described below, one line at a time
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Description:
 def get_object_reference(obj: Object) -> str: """Gets an object reference string from the obj instance. This adds the object type to ALL_RESOURCES so that it gets documented and returns a str which contains a sphinx reference to the documented object. :param obj: The Object instance. :returns: A sphinx docs reference str. """

    resource_name = obj.title
    if resource_name is None:
        class_name = obj.__name__
        resource_name = class_name_to_resource_name(class_name)
    ALL_RESOURCES[resource_name] = obj
    return ' See :ref:`resource-{}`.'.format(
        '-'.join(resource_name.split(' ')).lower().strip())