export declare const InstanceType: {
    /**
     * Unknown state, likely the result of an error on the backend. This is only used for distinguishing unset values.
     */
    readonly DatabaseInstanceTypeUnspecified: "DATABASE_INSTANCE_TYPE_UNSPECIFIED";
    /**
     * The default database that is provisioned when a project is created.
     */
    readonly DefaultDatabase: "DEFAULT_DATABASE";
    /**
     * A database that the user created.
     */
    readonly UserDatabase: "USER_DATABASE";
};
/**
 * Immutable. The database instance type. On creation only USER_DATABASE is allowed, which is also the default when omitted.
 */
export type InstanceType = (typeof InstanceType)[keyof typeof InstanceType];