Everyday dev utils like date utils, FP utils, collection utils and so on
Similar to JS optional chaining and nullish coalescing
from potyk_lib.fp.maybe import *
assert falsy(1).if_some(lambda i: i + 1).get() == 2
assert falsy(None).if_some(lambda i: i + 1).if_nothing(lambda: 3).get() == 3
assert falsy(item).field
assert falsy(None).field is None
assert isinstance(falsy(None), Nothing)
assert isinstance(falsy(0), Nothing)
assert isinstance(falsy(1), Some)
assert isinstance(nullish(None), Nothing)
assert isinstance(nullish(0), Some)
assert isinstance(nullish(1), Some)