why the helper functions are outside the impl block in crowdfunding | Stellar Developers | Page 1

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in the above example why the helpper function are declared outside the impl block

i was developing this contract attached one

help me fix this and suggest me some tips

GitHub

End-to-End Example Soroban Dapp. Contribute to stellar/soroban-example-dapp development by creating an account on GitHub.

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ignore last commented lines

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📎 lib.txt

#why the helper functions are outside the impl block in crowdfunding