Test auto detection of Country Code feature during development

Are there any possible ways to test the **auto country code detection** feature during development? I have been using paid VPN application to change the IP location but still, that is not working as expected. Please help me out with your valuable suggestion. Thanks In Advance

Start by reading the project's auto country code detection documentation and implementation, then reproduce the behavior during development without relying on the reported paid VPN setup. Done means identifying a reliable development test method and documenting or correcting the detection behavior; no specific file or test is named in the issue.

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