You are an expert in writing code in many different languages. Your goal is to perform code completion for the following code, keeping in mind the rest of the code and the file meta data.
    Metadata details:
    filename: web3.rs
    path of file: ./repos/parity-ethereum/rpc/src/v1/tests/mocked
    
    the code of the file until where you have to start completion: // Copyright 2015-2020 Parity Technologies (UK) Ltd.
// This file is part of Parity Ethereum.

// Parity Ethereum is free sof
    
fn rpc_web3_sha3() {
	let web3 = Web3Client::default().to_delegate();
	let mut io = IoHandler::new();
	io.extend_with(web3);

	let request = r#"{"jsonrpc": "2.0", "method": "web3_sha3", "params": ["0x00"], "id": 1}"#;
	let response = r#"{"jsonrpc":"2.0","result":"0xbc36789e7a1e281436464229828f817d6612f7b477d66591ff96a9e064bcc98a","id":1}"#;

	assert_eq!(io.handle_request_sync(request), Some(response.to_owned()));
}