import * as pulumi from "@pulumi/pulumi";
/**
 * `spacelift.StackDependencyReference` represents a Spacelift **stack dependency reference** - a reference matches a stack's output to another stack's input. It is similar to an environment variable (`spacelift.EnvironmentVariable`), except that value is provided by another stack's output.
 *
 * ## Example Usage
 *
 * ```typescript
 * import * as pulumi from "@pulumi/pulumi";
 * import * as spacelift from "@spacelift-io/pulumi-spacelift";
 *
 * const infra = new spacelift.Stack("infra", {
 *     branch: "master",
 *     repository: "core-infra",
 * });
 * const app = new spacelift.Stack("app", {
 *     branch: "master",
 *     repository: "app",
 * });
 * const testStackDependency = new spacelift.StackDependency("testStackDependency", {
 *     stackId: app.id,
 *     dependsOnStackId: infra.id,
 * });
 * const testStackDependencyReference = new spacelift.StackDependencyReference("testStackDependencyReference", {
 *     stackDependencyId: testStackDependency.id,
 *     outputName: "DB_CONNECTION_STRING",
 *     inputName: "APP_DB_URL",
 * });
 * ```
 */
export declare class StackDependencyReference extends pulumi.CustomResource {
    /**
     * Get an existing StackDependencyReference 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 state Any extra arguments used during the lookup.
     * @param opts Optional settings to control the behavior of the CustomResource.
     */
    static get(name: string, id: pulumi.Input<pulumi.ID>, state?: StackDependencyReferenceState, opts?: pulumi.CustomResourceOptions): StackDependencyReference;
    /**
     * Returns true if the given object is an instance of StackDependencyReference.  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 StackDependencyReference;
    /**
     * Name of the input of the stack dependency reference
     */
    readonly inputName: pulumi.Output<string>;
    /**
     * Name of the output of stack to depend on
     */
    readonly outputName: pulumi.Output<string>;
    /**
     * Immutable ID of stack dependency
     */
    readonly stackDependencyId: pulumi.Output<string>;
    /**
     * Create a StackDependencyReference 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: StackDependencyReferenceArgs, opts?: pulumi.CustomResourceOptions);
}
/**
 * Input properties used for looking up and filtering StackDependencyReference resources.
 */
export interface StackDependencyReferenceState {
    /**
     * Name of the input of the stack dependency reference
     */
    inputName?: pulumi.Input<string>;
    /**
     * Name of the output of stack to depend on
     */
    outputName?: pulumi.Input<string>;
    /**
     * Immutable ID of stack dependency
     */
    stackDependencyId?: pulumi.Input<string>;
}
/**
 * The set of arguments for constructing a StackDependencyReference resource.
 */
export interface StackDependencyReferenceArgs {
    /**
     * Name of the input of the stack dependency reference
     */
    inputName: pulumi.Input<string>;
    /**
     * Name of the output of stack to depend on
     */
    outputName: pulumi.Input<string>;
    /**
     * Immutable ID of stack dependency
     */
    stackDependencyId: pulumi.Input<string>;
}