withdraw start

withdrawStart method can be used to initiate the withdraw process which will burn the specified amount on child token.

const erc20ChildToken = plasmaClient.erc20(<child token address>);

// start withdraw process for 100 amount
const result = await erc20ChildToken.withdrawStart(100);

const txHash = await result.getTransactionHash();

const txReceipt = await result.getReceipt();

store the txHash which will be used to challenge the withdraw process.