/**
 * Remove any invalid characters from Docker image name component
 * `name` to make it a valid Docker image name component.  If
 * `hubOwner` is true, it ensures the name contains only alphanumeric
 * characters.
 *
 * From https://docs.docker.com/engine/reference/commandline/tag/:
 *
 * > An image name is made up of slash-separated name components,
 * > optionally prefixed by a registry hostname. The hostname must
 * > comply with standard DNS rules, but may not contain
 * > underscores. If a hostname is present, it may optionally be
 * > followed by a port number in the format :8080. If not present,
 * > the command uses Docker’s public registry located at
 * > registry-1.docker.io by default. Name components may contain
 * > lowercase letters, digits and separators. A separator is defined
 * > as a period, one or two underscores, or one or more dashes. A
 * > name component may not start or end with a separator.
 * >
 * > A tag name must be valid ASCII and may contain lowercase and
 * > uppercase letters, digits, underscores, periods and dashes. A tag
 * > name may not start with a period or a dash and may contain a
 * > maximum of 128 characters.
 *
 * @param name Name component to clean up.
 * @param hubOwner If `true` only allow characters valid for a Docker Hub user/org
 * @return Valid Docker image name component.
 */
export declare function cleanImageName(name: string, hubOwner?: boolean): string;