pragma solidity 0.6.12;

contract GenTelegram {
    mapping(address => string) public telegrams;

    function setTelegram(string calldata telegram) external {
        telegrams[msg.sender] = telegram;
    }
}

{
  "compilationTarget": {
    "GenTelegram.sol": "GenTelegram"
  },
  "evmVersion": "istanbul",
  "libraries": {},
  "metadata": {
    "bytecodeHash": "ipfs"
  },
  "optimizer": {
    "enabled": false,
    "runs": 200
  },
  "remappings": []
}