Add Oracle Aggregator and CCIP Integration
- Introduced Aggregator.sol for Chainlink-compatible oracle functionality, including round-based updates and access control. - Added OracleWithCCIP.sol to extend Aggregator with CCIP cross-chain messaging capabilities. - Created .gitmodules to include OpenZeppelin contracts as a submodule. - Developed a comprehensive deployment guide in NEXT_STEPS_COMPLETE_GUIDE.md for Phase 2 and smart contract deployment. - Implemented Vite configuration for the orchestration portal, supporting both Vue and React frameworks. - Added server-side logic for the Multi-Cloud Orchestration Portal, including API endpoints for environment management and monitoring. - Created scripts for resource import and usage validation across non-US regions. - Added tests for CCIP error handling and integration to ensure robust functionality. - Included various new files and directories for the orchestration portal and deployment scripts.
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docs/deployment/GAS_API_INTEGRATION_SUMMARY.md
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docs/deployment/GAS_API_INTEGRATION_SUMMARY.md
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# Gas API Integration Summary
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**Date**: 2025-01-27
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**Status**: ✅ Complete
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## What Was Implemented
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A complete real-time gas price fetching and documentation update system for multichain deployment.
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## New Scripts Created
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### 1. `scripts/deployment/get-multichain-gas-prices.sh`
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**Purpose**: Fetches real-time gas prices for all chains using APIs from `.env`
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**Features**:
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- Fetches gas prices from Etherscan API (Ethereum Mainnet)
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- Fetches gas prices from RPC endpoints (all chains)
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- Calculates deployment costs in native tokens
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- Calculates USD equivalents
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- Exports environment variables
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- Saves JSON output for programmatic access
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**Usage**:
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```bash
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./scripts/deployment/get-multichain-gas-prices.sh
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```
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### 2. `scripts/deployment/update-gas-estimates.sh`
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**Purpose**: Updates all documentation files with real-time gas prices
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**Features**:
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- Reads gas price data from `get-multichain-gas-prices.sh`
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- Updates `GAS_AND_TOKEN_REQUIREMENTS.md`
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- Updates `TOKENS_AND_CHAINS_SUMMARY.md`
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- Updates `DEPLOYMENT_QUICK_REFERENCE.md`
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- Updates timestamps in all files
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**Usage**:
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```bash
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./scripts/deployment/update-gas-estimates.sh
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```
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## Updated Documentation
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### 1. `GAS_AND_TOKEN_REQUIREMENTS.md`
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- Added real-time gas price update instructions
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- Updated gas price sections to reference API sources
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- Added automated update workflow
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- Added exchange rate notes
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### 2. `MULTICHAIN_DEPLOYMENT_RUNBOOK.md`
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- Added real-time gas price fetching step
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- Updated minimum balance recommendations
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- Added reference to gas requirements document
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### 3. `ENV_EXAMPLE_CONTENT.md`
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- Added gas API configuration section
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- Added Etherscan API key documentation
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- Added Infura Gas API option
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- Added instructions for real-time updates
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### 4. New Documentation Created
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- `REAL_TIME_GAS_UPDATES.md` - Complete guide for real-time updates
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- `REAL_TIME_GAS_SYSTEM.md` - System overview and quick start
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- `GAS_API_INTEGRATION_SUMMARY.md` - This document
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## Gas Price Sources
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### Ethereum Mainnet
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1. **Etherscan Gas API v2** (Primary)
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- Endpoint: `https://api.etherscan.io/v2/api?chainid=1&module=gastracker&action=gasoracle&apikey={KEY}`
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- Requires: `ETHERSCAN_API_KEY` in `.env`
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- Returns: FastGasPrice, ProposeGasPrice, SafeGasPrice
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2. **RPC Endpoint** (Fallback)
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- Uses: `eth_gasPrice` RPC call
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- Requires: `ETH_MAINNET_RPC_URL` in `.env`
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3. **Default** (Final Fallback)
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- 20 gwei if all APIs fail
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### Other Chains (Cronos, BSC, Polygon, Gnosis)
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1. **RPC Endpoint** (Primary)
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- Uses: `eth_gasPrice` RPC call
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- Requires: `*_RPC_URL` in `.env`
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2. **Default** (Fallback)
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- Chain-specific defaults
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## Required Environment Variables
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Add to `.env`:
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```bash
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# Ethereum Mainnet
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ETHERSCAN_API_KEY=your_etherscan_api_key_here
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ETH_MAINNET_RPC_URL=https://eth-mainnet.g.alchemy.com/v2/YOUR_KEY
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# Other Chains
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CRONOS_RPC_URL=https://evm.cronos.org
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BSC_RPC_URL=https://bsc-dataseed1.binance.org
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POLYGON_RPC_URL=https://polygon-rpc.com
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GNOSIS_RPC_URL=https://rpc.gnosischain.com
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```
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## Workflow
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### Before Deployment
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1. **Configure `.env`**:
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```bash
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cp .env.example .env
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# Edit .env with your API keys and RPC URLs
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```
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2. **Fetch Real-Time Prices**:
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```bash
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./scripts/deployment/get-multichain-gas-prices.sh
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```
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3. **Update Documentation**:
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```bash
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./scripts/deployment/update-gas-estimates.sh
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```
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4. **Review Estimates**:
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- Check updated documentation
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- Verify costs are acceptable
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- Ensure wallet balances are sufficient
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5. **Deploy**:
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```bash
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# Proceed with deployment using updated estimates
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```
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## Output Format
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### Console Output
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- Current gas prices for all chains
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- Deployment costs in native tokens
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- USD equivalents
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- Total estimated cost
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### JSON Output
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Saved to `/tmp/multichain_gas_prices.json`:
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```json
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{
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"timestamp": "2025-01-27 12:00:00 UTC",
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"gas_prices": {
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"ethereum_mainnet": { ... },
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"cronos": { ... },
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"bsc": { ... },
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"polygon": { ... },
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"gnosis": { ... }
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},
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"total_usd": "520.05"
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}
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```
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### Environment Variables
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Exported for use in other scripts:
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- `ETH_GAS_WEI`, `ETH_GAS_GWEI`, `ETH_COST`, `ETH_USD_COST`
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- `CRONOS_GAS_WEI`, `CRONOS_COST`, `CRONOS_USD_COST`
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- `BSC_GAS_WEI`, `BSC_COST`, `BSC_USD_COST`
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- `POLYGON_GAS_WEI`, `POLYGON_COST`, `POLYGON_USD_COST`
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- `GNOSIS_GAS_WEI`, `GNOSIS_COST`, `GNOSIS_USD_COST`
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- `TOTAL_USD`
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## Benefits
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1. **Always Current**: Uses real-time gas prices, not outdated estimates
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2. **Automated**: No manual calculation needed
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3. **Multi-Chain**: Supports all 5 chains simultaneously
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4. **Documentation Sync**: Keeps all docs automatically updated
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5. **Programmatic**: JSON output for automation/CI/CD
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6. **Transparent**: Shows exactly where prices come from
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## Testing
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To test the system:
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```bash
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# 1. Ensure .env is configured
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cat .env | grep -E "ETHERSCAN_API_KEY|.*_RPC_URL"
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# 2. Test gas price fetching
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./scripts/deployment/get-multichain-gas-prices.sh
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# 3. Verify JSON output
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cat /tmp/multichain_gas_prices.json | jq .
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# 4. Test documentation update
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./scripts/deployment/update-gas-estimates.sh
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# 5. Verify documentation was updated
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grep -A 5 "Current Real-Time Estimate" docs/deployment/GAS_AND_TOKEN_REQUIREMENTS.md
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```
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## Dependencies
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- **cast** (Foundry) - For RPC gas price calls
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- **bc** - For calculations
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- **curl** - For API calls
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- **jq** (optional) - For JSON parsing in scripts
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## Next Steps
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1. **Configure `.env`**: Add all required API keys and RPC URLs
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2. **Test Scripts**: Run the scripts to verify they work
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3. **Update Documentation**: Run update script to populate real-time values
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4. **Review Estimates**: Check that costs are reasonable
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5. **Deploy**: Use updated estimates for deployment planning
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## Related Files
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- `scripts/deployment/get-multichain-gas-prices.sh` - Gas price fetcher
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- `scripts/deployment/update-gas-estimates.sh` - Documentation updater
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- `docs/deployment/GAS_AND_TOKEN_REQUIREMENTS.md` - Cost breakdown
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- `docs/deployment/REAL_TIME_GAS_SYSTEM.md` - System overview
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- `docs/deployment/REAL_TIME_GAS_UPDATES.md` - Detailed guide
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---
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**Status**: ✅ Ready for use
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**Last Updated**: 2025-01-27
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