Add `.memoized?` method

[AlexWayfer]

To check (externally) if method memoized or not.

[tycooon]

Please add new method to the Readme.

[coveralls]

Pull Request Test Coverage Report for Build 59

• 37 of 41 (90.24%) changed or added relevant lines in 2 files are covered.
• No unchanged relevant lines lost coverage.
• Overall coverage decreased (-1.7%) to 98.259%

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Changes Missing Coverage	Covered Lines	Changed/Added Lines	%
spec/memery_spec.rb	35	39	89.74%
<!--	Total:	37	41	90.24%	-->

Totals
Change from base Build 54:	-1.7%
Covered Lines:	903
Relevant Lines:	919

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💛 - Coveralls

[AlexWayfer]

Please add new method to the Readme.

Yes, done.

[tycooon]

Please check the coverage, it looks like there is some dead code in specs: https://coveralls.io/builds/25906116

[AlexWayfer]

Please check the coverage, it looks like there is some dead code in specs

I think we should filter /spec from coverage, but OK, I've removed the body of unused method.

[tycooon]

Please check the coverage, it looks like there is some dead code in specs

I think we should filter /spec from coverage, but OK, I've removed the body of unused method.

It still shows coverage decrease. Why do we need the code that is never called in specs? 🤔

[AlexWayfer]

It still shows coverage decrease. Why do we need the code that is never called in specs? thinking

OK, another one, I'm sorry. Removed.