Install warnings

[waqarsaleem]

I am getting the following warnings when installing oj from MELPA.

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In toplevel form:
oj.el:216:12: Warning: defcustom for ‘oj-default-online-judge’ has syntactically odd type ‘'(choice (const :tag Aizu Online Judge 'aoj) (const :tag Anarchy Golf 'anrchy-golf) (const :tag AtCoder 'atcoder) (const :tag Codeforces 'codeforces) (const :tag CS Academy 'cs-academy) (const :tag Facebook Hacker Cup 'facebook-hacker-cup) (const :tag HackerRank 'hackerrank) (const :tag Kattis 'kattis) (const :tag PKU JudgeOnline 'pku) (const :tag Topcoder 'topcoder) (const :tag Toph (Problem Archive) 'toph) (const :tag CodeChef 'codechef) (const :tag Sphere online judge 'soj) (const :tag yukicoder 'yukicoder) (const :tag Library Checker 'library-checker))’

In oj--shortname-to-url:
oj.el:423:2: Warning: docstring has wrong usage of unescaped single quotes (use = or different quoting)

In oj-login:
oj.el:497:2: Warning: docstring has wrong usage of unescaped single quotes (use = or different quoting)

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My Emacs information is:
GNU Emacs 29.1 (build 1, aarch64-apple-darwin21.6.0, NS appkit-2113.60 Version 12.6.6 (Build 21G646)) of 2023-08-17