private RouteBuilder glob(String glob, int numGroupsToSkip) {
        requireNonNull(glob, "glob");
        return pathMapping(globPathMapping(glob, numGroupsToSkip));
    }
Sets the {@link Route} to match the specified {@code glob}.
{@code "*"} in the expression matches a path component non-recursively whereas {@code "**"} matches
path components recursively.
core/src/main/java/com/linecorp/armeria/server/RouteBuilder.java