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// SPDX-License-Identifier: GPL-3.0-or-later
pragma solidity 0.8.17;

// Static Diamond
// A static implementation of EIP-2535 Diamonds: https://eips.ethereum.org/EIPS/eip-2535

// This code was extraced from Pendle's deployed contracts here: 
// https://etherscan.io/address/0x0000000001e4ef00d069e71d6ba041b0a16f7ea0#code#F1#L1

// Blog article on the basics to implement EIP-2535 Diamonds here: 

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did:3:kjzl6cwe1jw1497jm1ckqomr59zuprfmyjqqsk4mayxovtmgynx89x2ktfsvk69

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pragma solidity ^0.8.17;

library LibPerson {
    
    uint256 private constant INNER_STRUCT = 0;

    struct Car {
        string brand;
        string model;        
    }

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// SPDX-License-Identifier: MIT
pragma solidity ^0.8.17;


struct Data {
    uint a;
    uint b;    
}

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// SPDX-License-Identifier: MIT
pragma solidity 0.8.11;

import { LibDiamond } from "../libraries/LibDiamond.sol";
import { IDiamondCut } from "../interfaces/IDiamondCut.sol";
import { IERC165 } from "../interfaces/IERC165.sol";
import { IERC721 } from "../interfaces/IERC721.sol";

contract Diamond {

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/**
 *Submitted for verification at polygonscan.com on 2021-06-13
*/

pragma solidity 0.5.17;


/*
 * @dev Provides information about the current execution context, including the
 * sender of the transaction and its data. While these are generally available

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// SPDX-License-Identifier: MIT
pragma solidity 0.8.11;

function doIt() external {
    uint256 length = myArray.length; // state read
    uint b;
    for(uint256 i; i < length; i++) { // local reads
        b++; // local write  
    }
    mySum = b; // state write

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// SPDX-License-Identifier: MIT
pragma solidity 0.8.11;

// Note: A facet is a contract used by a diamond.
// Note: This is a contrived example to show how to share internal functions between facets
// Note: It is not an accurate or complete implementation

// This design of sharing internal functions between facets works because remember the diamond proxy holds all the
// data and the facets read and write to the diamond proxy contract storage-- not to their own contract storage.

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//SPDX-License-Identifier: MIT
pragma solidity =0.8.9;

library MyLib {
  function appStorage() 
    internal 
    pure 
    returns (AppStorage storage ds) 
  {    
    assembly {

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//SPDX-License-Identifier: MIT
pragma solidity =0.8.9;

import "./AppStorage.sol"

contract StakingFacet {
  AppStorage internal s;

  function myFacetFunction() external {
    s.lastVar = s.firstVar + s.secondVar;