| 1 | import { PollingBlockTracker } from 'eth-block-tracker';
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| 2 | import { JsonRpcMiddleware } from 'json-rpc-engine';
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| 3 | import { Block, SafeEventEmitterProvider } from './utils/cache';
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| 4 | interface BlockRefMiddlewareOptions {
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| 5 | blockTracker?: PollingBlockTracker;
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| 6 | provider?: SafeEventEmitterProvider;
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| 7 | }
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| 8 | export declare function createBlockRefMiddleware({ provider, blockTracker, }?: BlockRefMiddlewareOptions): JsonRpcMiddleware<string[], Block>;
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| 9 | export {};
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