import * as pulumi from "@pulumi/pulumi";
import * as inputs from "../../types/input";
import * as outputs from "../../types/output";
/**
 * Creates a subscription to a given topic. If the subscription already exists, returns `ALREADY_EXISTS`. If the corresponding topic doesn't exist, returns `NOT_FOUND`. If the name is not provided in the request, the server will assign a random name for this subscription on the same project as the topic. Note that for REST API requests, you must specify a name.
 */
export declare class Subscription extends pulumi.CustomResource {
    /**
     * Get an existing Subscription 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): Subscription;
    /**
     * Returns true if the given object is an instance of Subscription.  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 Subscription;
    /**
     * This value is the maximum time after a subscriber receives a message before the subscriber should acknowledge the message. After message delivery but before the ack deadline expires and before the message is acknowledged, it is an outstanding message and will not be delivered again during that time (on a best-effort basis). For pull subscriptions, this value is used as the initial value for the ack deadline. To override this value for a given message, call `ModifyAckDeadline` with the corresponding `ack_id` if using pull. The maximum custom deadline you can specify is 600 seconds (10 minutes). For push delivery, this value is also used to set the request timeout for the call to the push endpoint. If the subscriber never acknowledges the message, the Pub/Sub system will eventually redeliver the message. If this parameter is 0, a default value of 10 seconds is used.
     */
    readonly ackDeadlineSeconds: pulumi.Output<number>;
    /**
     * The name of the subscription. It must have the format `"projects/{project}/subscriptions/{subscription}"`. `{subscription}` must start with a letter, and contain only letters (`[A-Za-z]`), numbers (`[0-9]`), dashes (`-`), underscores (`_`), periods (`.`), tildes (`~`), plus (`+`) or percent signs (`%`). It must be between 3 and 255 characters in length, and it must not start with `"goog"`.
     */
    readonly name: pulumi.Output<string>;
    readonly project: pulumi.Output<string>;
    /**
     * If push delivery is used with this subscription, this field is used to configure it. An empty `pushConfig` signifies that the subscriber will pull and ack messages using API methods.
     */
    readonly pushConfig: pulumi.Output<outputs.pubsub.v1beta2.PushConfigResponse>;
    readonly subscriptionId: pulumi.Output<string>;
    /**
     * The name of the topic from which this subscription is receiving messages. The value of this field will be `_deleted-topic_` if the topic has been deleted.
     */
    readonly topic: pulumi.Output<string>;
    /**
     * Create a Subscription 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: SubscriptionArgs, opts?: pulumi.CustomResourceOptions);
}
/**
 * The set of arguments for constructing a Subscription resource.
 */
export interface SubscriptionArgs {
    /**
     * This value is the maximum time after a subscriber receives a message before the subscriber should acknowledge the message. After message delivery but before the ack deadline expires and before the message is acknowledged, it is an outstanding message and will not be delivered again during that time (on a best-effort basis). For pull subscriptions, this value is used as the initial value for the ack deadline. To override this value for a given message, call `ModifyAckDeadline` with the corresponding `ack_id` if using pull. The maximum custom deadline you can specify is 600 seconds (10 minutes). For push delivery, this value is also used to set the request timeout for the call to the push endpoint. If the subscriber never acknowledges the message, the Pub/Sub system will eventually redeliver the message. If this parameter is 0, a default value of 10 seconds is used.
     */
    ackDeadlineSeconds?: pulumi.Input<number>;
    /**
     * The name of the subscription. It must have the format `"projects/{project}/subscriptions/{subscription}"`. `{subscription}` must start with a letter, and contain only letters (`[A-Za-z]`), numbers (`[0-9]`), dashes (`-`), underscores (`_`), periods (`.`), tildes (`~`), plus (`+`) or percent signs (`%`). It must be between 3 and 255 characters in length, and it must not start with `"goog"`.
     */
    name?: pulumi.Input<string>;
    project?: pulumi.Input<string>;
    /**
     * If push delivery is used with this subscription, this field is used to configure it. An empty `pushConfig` signifies that the subscriber will pull and ack messages using API methods.
     */
    pushConfig?: pulumi.Input<inputs.pubsub.v1beta2.PushConfigArgs>;
    subscriptionId: pulumi.Input<string>;
    /**
     * The name of the topic from which this subscription is receiving messages. The value of this field will be `_deleted-topic_` if the topic has been deleted.
     */
    topic?: pulumi.Input<string>;
}