def METHOD_NAME(failover_group_name: Optional[pulumi.Input[str]] = None,
                                       location_name: Optional[pulumi.Input[str]] = None,
                                       resource_group_name: Optional[pulumi.Input[str]] = None,
                                       opts: Optional[pulumi.InvokeOptions] = None) -> pulumi.Output[GetInstanceFailoverGroupResult]:
    """
    Gets a failover group.
    :param str failover_group_name: The name of the failover group.
    :param str location_name: The name of the region where the resource is located.
    :param str resource_group_name: The name of the resource group that contains the resource. You can obtain this value from the Azure Resource Manager API or the portal.
    """
    ...