def METHOD_NAME(database_name: Optional[str] = None,
                                           policy_name: Optional[str] = None,
                                           resource_group_name: Optional[str] = None,
                                           server_name: Optional[str] = None,
                                           opts: Optional[pulumi.InvokeOptions] = None) -> AwaitableGetBackupShortTermRetentionPolicyResult:
    """
    Gets a database's short term retention policy.
    Azure REST API version: 2021-11-01.
    :param str database_name: The name of the database.
    :param str policy_name: The policy name. Should always be "default".
    :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.
    :param str server_name: The name of the server.
    """
    __args__ = dict()
    __args__['databaseName'] = database_name
    __args__['policyName'] = policy_name
    __args__['resourceGroupName'] = resource_group_name
    __args__['serverName'] = server_name
    opts = pulumi.InvokeOptions.merge(_utilities.get_invoke_opts_defaults(), opts)
    __ret__ = pulumi.runtime.invoke('azure-native:sql:getBackupShortTermRetentionPolicy', __args__, opts=opts, typ=GetBackupShortTermRetentionPolicyResult).value
    return AwaitableGetBackupShortTermRetentionPolicyResult(
        diff_backup_interval_in_hours=pulumi.get(__ret__, 'diff_backup_interval_in_hours'),
        id=pulumi.get(__ret__, 'id'),
        name=pulumi.get(__ret__, 'name'),
        retention_days=pulumi.get(__ret__, 'retention_days'),
        type=pulumi.get(__ret__, 'type'))