import * as pulumi from "@pulumi/pulumi";
/**
 * Retrieves a TagKey. This method will return `PERMISSION_DENIED` if the key does not exist or the user does not have permission to view it.
 */
export declare function getTagKey(args: GetTagKeyArgs, opts?: pulumi.InvokeOptions): Promise<GetTagKeyResult>;
export interface GetTagKeyArgs {
    tagKeyId: string;
}
export interface GetTagKeyResult {
    /**
     * Creation time.
     */
    readonly createTime: string;
    /**
     * Optional. User-assigned description of the TagKey. Must not exceed 256 characters. Read-write.
     */
    readonly description: string;
    /**
     * Optional. Entity tag which users can pass to prevent race conditions. This field is always set in server responses. See UpdateTagKeyRequest for details.
     */
    readonly etag: string;
    /**
     * Immutable. The resource name for a TagKey. Must be in the format `tagKeys/{tag_key_id}`, where `tag_key_id` is the generated numeric id for the TagKey.
     */
    readonly name: string;
    /**
     * Immutable. Namespaced name of the TagKey.
     */
    readonly namespacedName: string;
    /**
     * Immutable. The resource name of the TagKey's parent. A TagKey can be parented by an Organization or a Project. For a TagKey parented by an Organization, its parent must be in the form `organizations/{org_id}`. For a TagKey parented by a Project, its parent can be in the form `projects/{project_id}` or `projects/{project_number}`.
     */
    readonly parent: string;
    /**
     * Optional. A purpose denotes that this Tag is intended for use in policies of a specific policy engine, and will involve that policy engine in management operations involving this Tag. A purpose does not grant a policy engine exclusive rights to the Tag, and it may be referenced by other policy engines. A purpose cannot be changed once set.
     */
    readonly purpose: string;
    /**
     * Optional. Purpose data corresponds to the policy system that the tag is intended for. See documentation for `Purpose` for formatting of this field. Purpose data cannot be changed once set.
     */
    readonly purposeData: {
        [key: string]: string;
    };
    /**
     * Immutable. The user friendly name for a TagKey. The short name should be unique for TagKeys within the same tag namespace. The short name must be 1-63 characters, beginning and ending with an alphanumeric character ([a-z0-9A-Z]) with dashes (-), underscores (_), dots (.), and alphanumerics between.
     */
    readonly shortName: string;
    /**
     * Update time.
     */
    readonly updateTime: string;
}
/**
 * Retrieves a TagKey. This method will return `PERMISSION_DENIED` if the key does not exist or the user does not have permission to view it.
 */
export declare function getTagKeyOutput(args: GetTagKeyOutputArgs, opts?: pulumi.InvokeOptions): pulumi.Output<GetTagKeyResult>;
export interface GetTagKeyOutputArgs {
    tagKeyId: pulumi.Input<string>;
}