Hyperlane Warp Routes (HWR) leverage the IHypERC20 token interface. HWR tokens implement this interface, which extends the standard ERC20 interface.
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/// @notice An interchain extension of the ERC20 interfaceinterface IHypERC20 is IERC20 { /** * @notice Transfers tokens to the specified recipient on a remote chain * @param _destination The domain ID of the destination chain * @param _recipient The address of the recipient, encoded as bytes32 * @param _amount The amount of tokens to transfer */ function transferRemote( uint32 _destination, bytes32 _recipient, uint256 _amount ) external payable;}