def METHOD_NAME(self, string):
    """
    Create recursively the TreeOU objects as child from the specified string.
    Params:
        string this string contains the OUs name separated by /, like "my_first/my_sub/my_subsub"
    """
    string = string.split('/')
    temp = self
    for element in string:
        # If the element exists
        if temp.search_direct_child(element):
            # The next element is analysed
            temp = temp.search_direct_child(element)
        else:
            new = TreeOU(element)
            temp.add_child(new)
            temp = new