import { ArtifactApi } from "@here/olp-sdk-dataservice-api";
/**
 * Prepares information for calls to the platform Artifact Service.
 */
export declare class SchemaRequest {
    private variant?;
    private billingTag?;
    /**
     * Gets the `Variant` object of the schema for the request.
     *
     * @return The `Variant` object of the schema.
     */
    getVariant(): ArtifactApi.Variant | undefined;
    /**
     * Sets a value of a schema HERE Resource Name (HRN) that is used in
     * the `getSchema` and `getSchemaDetails` methods of [[ArtifactClient]].
     *
     * @param variant The `Variant` object of the schema
     * @return The [[SchemaRequest]] instance that you can use to chain methods.
     */
    withVariant(variant: ArtifactApi.Variant): SchemaRequest;
    /**
     * An optional free-form tag that is used for grouping billing records together.
     *
     * If supplied, it must be 4–16 characters long and contain only alphanumeric ASCII characters [A-Za-z0-9].
     *
     * @param tag The `BillingTag` string.
     * @return The updated [[SchemaRequest]] instance that you can use to chain methods.
     */
    withBillingTag(tag: string): SchemaRequest;
    /**
     * Gets a billing tag to group billing records together.
     *
     * @return The `BillingTag` string.
     */
    getBillingTag(): string | undefined;
}