def METHOD_NAME(namespace_name: Optional[pulumi.Input[str]] = None,
                           resource_group_name: Optional[pulumi.Input[str]] = None,
                           topic_space_name: Optional[pulumi.Input[str]] = None,
                           opts: Optional[pulumi.InvokeOptions] = None) -> pulumi.Output[GetTopicSpaceResult]:
    """
    Get properties of a topic space.
    Azure REST API version: 2023-06-01-preview.
    :param str namespace_name: Name of the namespace.
    :param str resource_group_name: The name of the resource group within the user's subscription.
    :param str topic_space_name: Name of the Topic space.
    """
    ...