v2.2

NEW: One-off pipes, contributed by @YoraiLevi:

>>> from itertools import combinations

>>> list(range(5) | Pipe(combinations, 2))
[(0, 1), (0, 2), (0, 3), (0, 4), (1, 2), (1, 3), (1, 4), (2, 3), (2, 4), (3, 4)]
>>>

v2.0

• Dropped closing pipes, they were deprecated since 2019-10-22.
• NEW: Pipes are now partially initializable