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1. LRU Cache implementation in Typescript LRU Cache implementation in Typescript

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   class LRU_Cache<T> extends Map<string,T> {

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       private _limit: number;

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       constructor(limit: number, entries?: [string, T][]) {

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           super(entries);

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           this._limit = limit;

2. Postgres DB Listener in Python with ... Postgres DB Listener in Python with exponential backoff - asyncpg and asyncio

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   import asyncio

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   import asyncpg

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   async def listen_for_notifications():

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       backoff_times = [1, 2, 4, 8, 16]  # Backoff times in seconds