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// Solidity Code snippet:

   uint256 transactionCount;

    struct TransferStruct {
        address sender;
        address receiver;
        uint amount;
        string message;
        uint256 timestamp;
        string keyword;
    }

    TransferStruct[] transactions;

    event Transfer(address from, address _who, uint amount, string message, uint256 timestamp, string keyword);

    
    function addToBlockchain(address payable _who, uint amount, string memory message, string memory keyword) public {
        transactionCount += 1;
        transactions.push(TransferStruct(msg.sender, _who, amount, message, block.timestamp, keyword));
        emit Transfer(msg.sender, _who, amount, message, block.timestamp, keyword);
    }

    function getAllTransactions() public view returns (TransferStruct[] memory) {
        return transactions;
    }

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// Truffle Test file Snippet

    describe("Add to Blockchain", () => {
      
      it("should add transfer to the struct", async() => {
        const txBlock = await _contract.addToBlockchain(_who, _amount, message, keyword)
      })
    })