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For examples of extensions using this hook, see Category:SecurePoll GetUserParams extensions . Category:Extension hooks#SecurePoll%20GetUserParams Category:Undocumented extension hooks#SecurePoll%20GetUserParams Category:Extension hooks provided by SecurePoll Category:Extension hooks#SecurePoll%20GetUserParams Category:Undocumented extension hooks#SecurePoll%20GetUserParams Category:Extension hooks provided by SecurePoll