export declare function hasCloudflareRuntime(): boolean; export declare function isProductionServerlessFunctionRuntime(env?: NodeJS.ProcessEnv): boolean; export declare function isHostedFunctionInvocationRuntime(env?: NodeJS.ProcessEnv): boolean; export declare function isMigrationAuthorizedRuntime(): boolean; export declare function isMigrationExecutingRuntime(): boolean; export declare function withMigrationRuntime(run: () => Promise): Promise; export declare function withMigrationExecutionRuntime(run: () => Promise): Promise;