struct_io.sol

//to accompany ethers_structs.js

pragma solidity 0.4.21; 
pragma experimental ABIEncoderV2; 

contract TestContract { 
    struct SubStruct { 
        uint256 id; 
        string description; 
    }
    struct TestStruct { 
    uint256 id; 
    string description; 
    SubStruct subStruct1; 
    }

    TestStruct[] public tests;
    function addTestStruct(TestStruct testStruct) public { 
        tests.push(testStruct); 
    } 
}