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                  prepare(on:Asynchronous) Required by Migrationprotocol. Renames the “Where and When” category to “Splashdot”DeclarationSwift func prepare(on database: Database) async throwsParametersdatabaseA connection to the database, provided automatically. Return ValueVoid. 
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                  revert(on:Asynchronous) Undoes this migration, renaming the category back to “Where and When” DeclarationSwift func revert(on database: Database) async throwsParametersconnThe database connection. Return ValueVoid. 
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           RenameWhereAndWhen Structure Reference
      RenameWhereAndWhen Structure Reference