def METHOD_NAME(self, dirName):
    """
    _addDirectory_
    Add a subdirectory structure to the template that will be built by
    the builder
    """
    split = dirName.split("/")
    split = [ x for x in split if x.strip() != "" ]
    dirs = getattr(self.data.build.directories, self.stepName())
    for subdir in split:
        exists = getattr(dirs, subdir, None)
        if exists == None:
            dirs.section_(subdir)
        dirs = getattr(dirs, subdir)
    return dirs