import * as pulumi from "@pulumi/pulumi";
/**
 * Creates a new session. A session can be used to perform transactions that read and/or modify data in a Cloud Spanner database. Sessions are meant to be reused for many consecutive transactions. Sessions can only execute one transaction at a time. To execute multiple concurrent read-write/write-only transactions, create multiple sessions. Note that standalone reads and queries use a transaction internally, and count toward the one transaction limit. Active sessions use additional server resources, so it is a good idea to delete idle and unneeded sessions. Aside from explicit deletes, Cloud Spanner may delete sessions for which no operations are sent for more than an hour. If a session is deleted, requests to it return `NOT_FOUND`. Idle sessions can be kept alive by sending a trivial SQL query periodically, e.g., `"SELECT 1"`.
 * Auto-naming is currently not supported for this resource.
 */
export declare class Session extends pulumi.CustomResource {
    /**
     * Get an existing Session resource's state with the given name, ID, and optional extra
     * properties used to qualify the lookup.
     *
     * @param name The _unique_ name of the resulting resource.
     * @param id The _unique_ provider ID of the resource to lookup.
     * @param opts Optional settings to control the behavior of the CustomResource.
     */
    static get(name: string, id: pulumi.Input<pulumi.ID>, opts?: pulumi.CustomResourceOptions): Session;
    /**
     * Returns true if the given object is an instance of Session.  This is designed to work even
     * when multiple copies of the Pulumi SDK have been loaded into the same process.
     */
    static isInstance(obj: any): obj is Session;
    /**
     * The approximate timestamp when the session is last used. It is typically earlier than the actual last use time.
     */
    readonly approximateLastUseTime: pulumi.Output<string>;
    /**
     * The timestamp when the session is created.
     */
    readonly createTime: pulumi.Output<string>;
    /**
     * The database role which created this session.
     */
    readonly creatorRole: pulumi.Output<string>;
    readonly databaseId: pulumi.Output<string>;
    readonly instanceId: pulumi.Output<string>;
    /**
     * The labels for the session. * Label keys must be between 1 and 63 characters long and must conform to the following regular expression: `[a-z]([-a-z0-9]*[a-z0-9])?`. * Label values must be between 0 and 63 characters long and must conform to the regular expression `([a-z]([-a-z0-9]*[a-z0-9])?)?`. * No more than 64 labels can be associated with a given session. See https://goo.gl/xmQnxf for more information on and examples of labels.
     */
    readonly labels: pulumi.Output<{
        [key: string]: string;
    }>;
    /**
     * The name of the session. This is always system-assigned.
     */
    readonly name: pulumi.Output<string>;
    readonly project: pulumi.Output<string>;
    /**
     * Create a Session resource with the given unique name, arguments, and options.
     *
     * @param name The _unique_ name of the resource.
     * @param args The arguments to use to populate this resource's properties.
     * @param opts A bag of options that control this resource's behavior.
     */
    constructor(name: string, args: SessionArgs, opts?: pulumi.CustomResourceOptions);
}
/**
 * The set of arguments for constructing a Session resource.
 */
export interface SessionArgs {
    /**
     * The database role which created this session.
     */
    creatorRole?: pulumi.Input<string>;
    databaseId: pulumi.Input<string>;
    instanceId: pulumi.Input<string>;
    /**
     * The labels for the session. * Label keys must be between 1 and 63 characters long and must conform to the following regular expression: `[a-z]([-a-z0-9]*[a-z0-9])?`. * Label values must be between 0 and 63 characters long and must conform to the regular expression `([a-z]([-a-z0-9]*[a-z0-9])?)?`. * No more than 64 labels can be associated with a given session. See https://goo.gl/xmQnxf for more information on and examples of labels.
     */
    labels?: pulumi.Input<{
        [key: string]: pulumi.Input<string>;
    }>;
    project?: pulumi.Input<string>;
}