# File lib/snmp/varbind.rb, line 188
    def subtree_of?(parent_tree)
        parent_tree = make_object_id(parent_tree)
        if parent_tree.length > self.length
            false
        else
            parent_tree.each_index do |i|
                return false if parent_tree[i] != self[i]
            end
            true
        end
    end