loop(caller: Callable, *args, joiner='', formatter=None, **kwargs): 

loop_template(template: str, *args, joiner='', formatter=None, **kwargs): 

join(*args, joiner=' ', formatter=None): 

load(template, formatter=None): 

include(template, formatter=None): 

apply(template, *args, formatter=None, **kwargs): 

nonempty(data, formatter=None): 

wrap(fn): 

cleandoc(txt, formatter=None): 

wrap_str(obj, formatter=None): 

optional(key, default='', formatter=None):