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    // Copyright 2015-2017 Parity Technologies (UK) Ltd.
    // This file is part of Parity.

    // Parity is free software: you can redistribute it and/or modify
    // it under the terms of the GNU General Public License as published by
    // the Free Software Foundation, either version 3 of the License, or
    // (at your option) any later version.

    // Parity is distributed in the hope that it will be useful,
    // but WITHOUT ANY WARRANTY; without even the implied warranty of
    // MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
    // GNU General Public License for more details.

    // You should have received a copy of the GNU General Public License
    // along with Parity.  If not, see <http://www.gnu.org/licenses/>.

    //! Web3 rpc implementation.
    use jsonrpc_core::*;
    use util::version;
    use v1::traits::Web3;
    use v1::types::{H256, Bytes};
    use util::sha3::Hashable;

    /// Web3 rpc implementation.
    pub struct Web3Client;

    impl Web3Client {
    	/// Creates new Web3Client.
    	pub fn new() -> Self { Web3Client }
    }

    impl Web3 for Web3Client {
    	fn client_version(&self) -> Result<String, Error> {
    		Ok(version().to_owned().replace("Parity/", "Parity//"))
    	}

    	fn sha3(&self, data: Bytes) -> Result<H256, Error> {
    		Ok(data.0.sha3().into())
    	}
    }

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