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File Structure

Understand the components of the ICTT structure

Contract Structure

The ERC20 and native token transferrers built on top of Interchain Messaging are composed of interfaces and abstract contracts that make them extendable to new implementations in the future.

ITokenTransferrer

Interface that defines the events token transfer contract implementations must emit. Also defines the message types and formats of messages between all implementations.

IERC20TokenTransferrer and INativeTokenTransferrer

Interfaces that define the external functions for interacting with token transfer contract implementations of each type. ERC20 and native token transferrer interfaces vary from each other in that the native token transferrer functions are payable and do not take an explicit amount parameter (it is implied by msg.value), while the ERC20 token transferrer functions are not payable and require the explicit amount parameter. Otherwise, they include the same functions.

TokenHome and TokenRemote

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